- 合并 FreeSql.DbContext 项目至 FreeSql 维护；

FreeSql.Tests/FreeSql.Tests/SqlServer/Curd/SqlServerDeleteTest.cs

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+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServer {
+	[Collection("SqlServerCollection")]
+	public class SqlServerDeleteTest
+	{
+		SqlServerFixture _sqlserverFixture;
+
+		public SqlServerDeleteTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		IDelete<Topic> delete => _sqlserverFixture.SqlServer.Delete<Topic>(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+		[Table(Name = "tb_topic22211")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int? Clicks { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+
+		[Fact]
+		public void Dywhere() {
+			Assert.Null(_sqlserverFixture.SqlServer.Delete<Topic>().ToSql());
+			var sql = _sqlserverFixture.SqlServer.Delete<Topic>(new[] { 1, 2 }).ToSql();
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1 OR [Id] = 2)", sql);
+
+			sql = _sqlserverFixture.SqlServer.Delete<Topic>(new Topic { Id = 1, Title = "test" }).ToSql();
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
+
+			sql = _sqlserverFixture.SqlServer.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).ToSql();
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1 OR [Id] = 2)", sql);
+
+			sql = _sqlserverFixture.SqlServer.Delete<Topic>(new { id = 1 }).ToSql();
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
+		}
+
+		[Fact]
+		public void Where() {
+			var sql = delete.Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
+
+			sql = delete.Where("id = @id", new { id = 1 }).ToSql().Replace("\r\n", "");
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE (id = @id)", sql);
+
+			var item = new Topic { Id = 1, Title = "newtitle" };
+			sql = delete.Where(item).ToSql().Replace("\r\n", "");
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] = 1)", sql);
+
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			sql = delete.Where(items).ToSql().Replace("\r\n", "");
+			Assert.Equal("DELETE FROM [tb_topic22211] WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+		}
+		[Fact]
+		public void WhereExists() {
+
+		}
+		[Fact]
+		public void ExecuteAffrows() {
+
+			var id = _sqlserverFixture.SqlServer.Insert<Topic>(new Topic { Title = "xxxx", CreateTime = DateTime.Now }).ExecuteIdentity();
+			Assert.Equal(1, delete.Where(a => a.Id == id).ExecuteAffrows());
+		}
+		[Fact]
+		public void ExecuteDeleted() {
+
+			var item = _sqlserverFixture.SqlServer.Insert<Topic>(new Topic { Title = "xxxx", CreateTime = DateTime.Now }).ExecuteInserted();
+			Assert.Equal(item[0].Id, delete.Where(a => a.Id == item[0].Id).ExecuteDeleted()[0].Id);
+
+			var items = Enumerable.Range(0, 301).Select(a => new Topic { Title = "xxxx" + a, CreateTime = DateTime.Now });
+			var itemsInserted = _sqlserverFixture.SqlServer.Insert<Topic>(items).ExecuteInserted();
+			Assert.Equal(items.First().Title, itemsInserted[0].Title);
+
+			Assert.Equal(itemsInserted[0].Id, delete.Where(a => a.Id == itemsInserted[0].Id).ExecuteDeleted()[0].Id);
+		}
+
+		[Fact]
+		public void AsTable() {
+			Assert.Null(_sqlserverFixture.SqlServer.Delete<Topic>().ToSql());
+			var sql = _sqlserverFixture.SqlServer.Delete<Topic>(new[] { 1, 2 }).AsTable(a => "tb_topic22211AsTable").ToSql();
+			Assert.Equal("DELETE FROM [tb_topic22211AsTable] WHERE ([Id] = 1 OR [Id] = 2)", sql);
+
+			sql = _sqlserverFixture.SqlServer.Delete<Topic>(new Topic { Id = 1, Title = "test" }).AsTable(a => "tb_topic22211AsTable").ToSql();
+			Assert.Equal("DELETE FROM [tb_topic22211AsTable] WHERE ([Id] = 1)", sql);
+
+			sql = _sqlserverFixture.SqlServer.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).AsTable(a => "tb_topic22211AsTable").ToSql();
+			Assert.Equal("DELETE FROM [tb_topic22211AsTable] WHERE ([Id] = 1 OR [Id] = 2)", sql);
+
+			sql = _sqlserverFixture.SqlServer.Delete<Topic>(new { id = 1 }).AsTable(a => "tb_topic22211AsTable").ToSql();
+			Assert.Equal("DELETE FROM [tb_topic22211AsTable] WHERE ([Id] = 1)", sql);
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/Curd/SqlServerInsertTest.cs

@@ -0,0 +1,138 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServer {
+	[Collection("SqlServerCollection")]
+	public class SqlServerInsertTest
+	{
+		SqlServerFixture _sqlserverFixture;
+
+		public SqlServerInsertTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		IInsert<Topic> insert => _sqlserverFixture.SqlServer.Insert<Topic>(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int? Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+ 
+		[Fact]
+		public void AppendData() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+			var sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items.First()).ToSql();
+			Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title], [CreateTime]) VALUES(@Clicks_0, @Title_0, @CreateTime_0)", sql);
+
+			sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items).ToSql();
+			Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title], [CreateTime]) VALUES(@Clicks_0, @Title_0, @CreateTime_0), (@Clicks_1, @Title_1, @CreateTime_1), (@Clicks_2, @Title_2, @CreateTime_2), (@Clicks_3, @Title_3, @CreateTime_3), (@Clicks_4, @Title_4, @CreateTime_4), (@Clicks_5, @Title_5, @CreateTime_5), (@Clicks_6, @Title_6, @CreateTime_6), (@Clicks_7, @Title_7, @CreateTime_7), (@Clicks_8, @Title_8, @CreateTime_8), (@Clicks_9, @Title_9, @CreateTime_9)", sql);
+
+			sql = insert.AppendData(items).InsertColumns(a => a.Title).ToSql();
+			Assert.Equal("INSERT INTO [tb_topic]([Title]) VALUES(@Title_0), (@Title_1), (@Title_2), (@Title_3), (@Title_4), (@Title_5), (@Title_6), (@Title_7), (@Title_8), (@Title_9)", sql);
+
+			sql = insert.IgnoreColumns(a => new { a.CreateTime, a.TypeGuid }).AppendData(items).ToSql();
+			Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title]) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+		}
+
+		[Fact]
+		public void InsertColumns() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+			var sql = insert.AppendData(items).InsertColumns(a => a.Title).ToSql();
+			Assert.Equal("INSERT INTO [tb_topic]([Title]) VALUES(@Title_0), (@Title_1), (@Title_2), (@Title_3), (@Title_4), (@Title_5), (@Title_6), (@Title_7), (@Title_8), (@Title_9)", sql);
+
+			sql = insert.AppendData(items).InsertColumns(a =>new { a.Title, a.Clicks }).ToSql();
+			Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title]) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+		}
+		[Fact]
+		public void IgnoreColumns() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+			var sql = insert.AppendData(items).IgnoreColumns(a => new { a.CreateTime, a.TypeGuid }).ToSql();
+			Assert.Equal("INSERT INTO [tb_topic]([Clicks], [Title]) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = insert.AppendData(items).IgnoreColumns(a => new { a.Title, a.CreateTime, a.TypeGuid }).ToSql();
+			Assert.Equal("INSERT INTO [tb_topic]([Clicks]) VALUES(@Clicks_0), (@Clicks_1), (@Clicks_2), (@Clicks_3), (@Clicks_4), (@Clicks_5), (@Clicks_6), (@Clicks_7), (@Clicks_8), (@Clicks_9)", sql);
+		}
+		[Fact]
+		public void ExecuteAffrows() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+			Assert.Equal(1, insert.AppendData(items.First()).ExecuteAffrows());
+			Assert.Equal(10, insert.AppendData(items).ExecuteAffrows());
+
+			//items = Enumerable.Range(0, 9989).Select(a => new Topic { Title = "newtitle" + a, CreateTime = DateTime.Now }).ToList();
+			//Assert.Equal(9989, _sqlserverFixture.SqlServer.Insert<Topic>(items).ExecuteAffrows());
+		}
+		[Fact]
+		public void ExecuteIdentity() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+			Assert.NotEqual(0, insert.AppendData(items.First()).ExecuteIdentity());
+
+
+			//items = Enumerable.Range(0, 9999).Select(a => new Topic { Title = "newtitle" + a, CreateTime = DateTime.Now }).ToList();
+			//var lastId = g.sqlite.Select<Topic>().Max(a => a.Id);
+			//Assert.NotEqual(lastId, _sqlserverFixture.SqlServer.Insert<Topic>(items).ExecuteIdentity());
+		}
+		[Fact]
+		public void ExecuteInserted() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+			var items2 = insert.AppendData(items).ExecuteInserted();
+
+			items = Enumerable.Range(0, 90).Select(a => new Topic { Title = "newtitle" + a, CreateTime = DateTime.Now }).ToList();
+			var itemsInserted = _sqlserverFixture.SqlServer.Insert<Topic>(items).ExecuteInserted();
+			Assert.Equal(items.First().Title, itemsInserted.First().Title);
+			Assert.Equal(items.Last().Title, itemsInserted.Last().Title);
+		}
+
+		[Fact]
+		public void AsTable() {
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100, CreateTime = DateTime.Now });
+
+			var sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items.First()).AsTable(a => "tb_topicAsTable").ToSql();
+			Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title], [CreateTime]) VALUES(@Clicks_0, @Title_0, @CreateTime_0)", sql);
+
+			sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+			Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title], [CreateTime]) VALUES(@Clicks_0, @Title_0, @CreateTime_0), (@Clicks_1, @Title_1, @CreateTime_1), (@Clicks_2, @Title_2, @CreateTime_2), (@Clicks_3, @Title_3, @CreateTime_3), (@Clicks_4, @Title_4, @CreateTime_4), (@Clicks_5, @Title_5, @CreateTime_5), (@Clicks_6, @Title_6, @CreateTime_6), (@Clicks_7, @Title_7, @CreateTime_7), (@Clicks_8, @Title_8, @CreateTime_8), (@Clicks_9, @Title_9, @CreateTime_9)", sql);
+
+			sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items).InsertColumns(a => a.Title).AsTable(a => "tb_topicAsTable").ToSql();
+			Assert.Equal("INSERT INTO [tb_topicAsTable]([Title]) VALUES(@Title_0), (@Title_1), (@Title_2), (@Title_3), (@Title_4), (@Title_5), (@Title_6), (@Title_7), (@Title_8), (@Title_9)", sql);
+
+			sql = insert.IgnoreColumns(a => new { a.CreateTime, a.TypeGuid }).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+			Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title]) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = insert.IgnoreColumns(a => new { a.Title, a.TypeGuid }).InsertColumns(a => a.Title).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+			Assert.Equal("INSERT INTO [tb_topicAsTable]([Title]) VALUES(@Title_0), (@Title_1), (@Title_2), (@Title_3), (@Title_4), (@Title_5), (@Title_6), (@Title_7), (@Title_8), (@Title_9)", sql);
+
+			sql = insert.IgnoreColumns(a => a.TypeGuid).AppendData(items).InsertColumns(a => new { a.Title, a.Clicks }).AsTable(a => "tb_topicAsTable").ToSql();
+			Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title]) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = insert.IgnoreColumns(a => new { a.CreateTime, a.TypeGuid }).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+			Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks], [Title]) VALUES(@Clicks_0, @Title_0), (@Clicks_1, @Title_1), (@Clicks_2, @Title_2), (@Clicks_3, @Title_3), (@Clicks_4, @Title_4), (@Clicks_5, @Title_5), (@Clicks_6, @Title_6), (@Clicks_7, @Title_7), (@Clicks_8, @Title_8), (@Clicks_9, @Title_9)", sql);
+
+			sql = insert.IgnoreColumns(a => new { a.CreateTime, a.Title, a.TypeGuid }).AppendData(items).AsTable(a => "tb_topicAsTable").ToSql();
+			Assert.Equal("INSERT INTO [tb_topicAsTable]([Clicks]) VALUES(@Clicks_0), (@Clicks_1), (@Clicks_2), (@Clicks_3), (@Clicks_4), (@Clicks_5), (@Clicks_6), (@Clicks_7), (@Clicks_8), (@Clicks_9)", sql);
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/Curd/SqlServerUpdateTest.cs

@@ -0,0 +1,138 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServer {
+	[Collection("SqlServerCollection")]
+	public class SqlServerUpdateTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public SqlServerUpdateTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		IUpdate<Topic> update => _sqlserverFixture.SqlServer.Update<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int? Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+ 
+		[Fact]
+		public void Dywhere() {
+			Assert.Null(_sqlserverFixture.SqlServer.Update<Topic>().ToSql());
+			Assert.Equal("UPDATE [tb_topic] SET title='test' \r\nWHERE ([Id] = 1 OR [Id] = 2)", _sqlserverFixture.SqlServer.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").ToSql());
+			Assert.Equal("UPDATE [tb_topic] SET title='test1' \r\nWHERE ([Id] = 1)", _sqlserverFixture.SqlServer.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").ToSql());
+			Assert.Equal("UPDATE [tb_topic] SET title='test1' \r\nWHERE ([Id] = 1 OR [Id] = 2)", _sqlserverFixture.SqlServer.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").ToSql());
+			Assert.Equal("UPDATE [tb_topic] SET title='test1' \r\nWHERE ([Id] = 1)", _sqlserverFixture.SqlServer.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").ToSql());
+		}
+
+		[Fact]
+		public void SetSource() {
+			var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).IgnoreColumns(a => a.TypeGuid).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Clicks] = @p_0, [Title] = @p_1, [CreateTime] = @p_2 WHERE ([Id] = 1)", sql);
+
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+
+			sql = update.SetSource(items).IgnoreColumns(a => a.TypeGuid).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Clicks] = CASE [Id] WHEN 1 THEN @p_0 WHEN 2 THEN @p_1 WHEN 3 THEN @p_2 WHEN 4 THEN @p_3 WHEN 5 THEN @p_4 WHEN 6 THEN @p_5 WHEN 7 THEN @p_6 WHEN 8 THEN @p_7 WHEN 9 THEN @p_8 WHEN 10 THEN @p_9 END, [Title] = CASE [Id] WHEN 1 THEN @p_10 WHEN 2 THEN @p_11 WHEN 3 THEN @p_12 WHEN 4 THEN @p_13 WHEN 5 THEN @p_14 WHEN 6 THEN @p_15 WHEN 7 THEN @p_16 WHEN 8 THEN @p_17 WHEN 9 THEN @p_18 WHEN 10 THEN @p_19 END, [CreateTime] = CASE [Id] WHEN 1 THEN @p_20 WHEN 2 THEN @p_21 WHEN 3 THEN @p_22 WHEN 4 THEN @p_23 WHEN 5 THEN @p_24 WHEN 6 THEN @p_25 WHEN 7 THEN @p_26 WHEN 8 THEN @p_27 WHEN 9 THEN @p_28 WHEN 10 THEN @p_29 END WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+			sql = update.SetSource(items).IgnoreColumns(a => new { a.Clicks, a.CreateTime, a.TypeGuid }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Title] = CASE [Id] WHEN 1 THEN @p_0 WHEN 2 THEN @p_1 WHEN 3 THEN @p_2 WHEN 4 THEN @p_3 WHEN 5 THEN @p_4 WHEN 6 THEN @p_5 WHEN 7 THEN @p_6 WHEN 8 THEN @p_7 WHEN 9 THEN @p_8 WHEN 10 THEN @p_9 END WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+
+			sql = update.SetSource(items).IgnoreColumns(a => a.TypeGuid).Set(a => a.CreateTime, new DateTime(2020,1,1)).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [CreateTime] = @p_0 WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+		}
+		[Fact]
+		public void IgnoreColumns() {
+			var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).IgnoreColumns(a => new { a.Clicks, a.CreateTime, a.TypeGuid }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Title] = @p_0 WHERE ([Id] = 1)", sql);
+		}
+		[Fact]
+		public void UpdateColumns() {
+			var sql = update.SetSource(new Topic { Id = 1, Title = "newtitle" }).UpdateColumns(a => a.Title).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Title] = @p_0 WHERE ([Id] = 1)", sql);
+		}
+		[Fact]
+		public void Set() {
+			var sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Title] = @p_0 WHERE ([Id] = 1)", sql);
+
+			sql = update.Where(a => a.Id == 1).Set(a => a.Title, "newtitle").Set(a => a.CreateTime, new DateTime(2020, 1, 1)).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Title] = @p_0, [CreateTime] = @p_1 WHERE ([Id] = 1)", sql);
+
+			sql = update.Set(a => a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Clicks] = isnull([Clicks], 0) * 10 / 1 WHERE ([Id] = 1)", sql);
+
+			sql = update.Set(a => a.Id - 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Id] = ([Id] - 10) WHERE ([Id] = 1)", sql);
+
+			int incrv = 10;
+			sql = update.Set(a => a.Clicks * incrv / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Clicks] = isnull([Clicks], 0) * 10 / 1 WHERE ([Id] = 1)", sql);
+
+			sql = update.Set(a => a.Id - incrv).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Id] = ([Id] - 10) WHERE ([Id] = 1)", sql);
+
+			sql = update.Set(a => a.Clicks == a.Clicks * 10 / 1).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Clicks] = [Clicks] * 10 / 1 WHERE ([Id] = 1)", sql);
+
+			sql = update.Set(a => a.Id == 10).Where(a => a.Id == 1).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET [Id] = 10 WHERE ([Id] = 1)", sql);
+		}
+		[Fact]
+		public void SetRaw() {
+			var sql = update.Where(a => a.Id == 1).SetRaw("clicks = clicks + @incrClick", new { incrClick = 1 }).ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET clicks = clicks + @incrClick WHERE ([Id] = 1)", sql);
+		}
+		[Fact]
+		public void Where() {
+			var sql = update.Where(a => a.Id == 1).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET title='newtitle' WHERE ([Id] = 1)", sql);
+
+			sql = update.Where("id = @id", new { id = 1 }).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET title='newtitle' WHERE (id = @id)", sql);
+
+			var item = new Topic { Id = 1, Title = "newtitle" };
+			sql = update.Where(item).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET title='newtitle' WHERE ([Id] = 1)", sql);
+
+			var items = new List<Topic>();
+			for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
+			sql = update.Where(items).SetRaw("title='newtitle'").ToSql().Replace("\r\n", "");
+			Assert.Equal("UPDATE [tb_topic] SET title='newtitle' WHERE ([Id] IN (1,2,3,4,5,6,7,8,9,10))", sql);
+		}
+		[Fact]
+		public void WhereExists() {
+
+		}
+		[Fact]
+		public void ExecuteAffrows() {
+
+		}
+		[Fact]
+		public void ExecuteUpdated() {
+
+		}
+
+		[Fact]
+		public void AsTable() {
+			Assert.Null(_sqlserverFixture.SqlServer.Update<Topic>().ToSql());
+			Assert.Equal("UPDATE [tb_topicAsTable] SET title='test' \r\nWHERE ([Id] = 1 OR [Id] = 2)", _sqlserverFixture.SqlServer.Update<Topic>(new[] { 1, 2 }).SetRaw("title='test'").AsTable(a => "tb_topicAsTable").ToSql());
+			Assert.Equal("UPDATE [tb_topicAsTable] SET title='test1' \r\nWHERE ([Id] = 1)", _sqlserverFixture.SqlServer.Update<Topic>(new Topic { Id = 1, Title = "test" }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+			Assert.Equal("UPDATE [tb_topicAsTable] SET title='test1' \r\nWHERE ([Id] = 1 OR [Id] = 2)", _sqlserverFixture.SqlServer.Update<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+			Assert.Equal("UPDATE [tb_topicAsTable] SET title='test1' \r\nWHERE ([Id] = 1)", _sqlserverFixture.SqlServer.Update<Topic>(new { id = 1 }).SetRaw("title='test1'").AsTable(a => "tb_topicAsTable").ToSql());
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/MapType/EnumTest.cs

@@ -0,0 +1,263 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerMapType {
+	[Collection("SqlServerCollection")]
+	public class EnumTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public EnumTest(SqlServerFixture sqlserverFixture) {
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		class EnumTestMap {
+			public Guid id { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public ToStringMapEnum enum_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public ToStringMapEnum? enumnullable_to_string { get; set; }
+
+			[Column(MapType = typeof(int))]
+			public ToStringMapEnum enum_to_int { get; set; }
+			[Column(MapType = typeof(int?))]
+			public ToStringMapEnum? enumnullable_to_int { get; set; }
+		}
+		public enum ToStringMapEnum { <EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, abc, <EFBFBD><EFBFBD><EFBFBD><EFBFBD> }
+		[Fact]
+		public void EnumToString() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new EnumTestMap { };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			item = new EnumTestMap { enum_to_string = ToStringMapEnum.abc };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+			//update all
+			item.enum_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void EnumNullableToString() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new EnumTestMap { };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Null(find.enumnullable_to_string);
+
+			item = new EnumTestMap { enumnullable_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+			item.enumnullable_to_string = null;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Null(find.enumnullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_string);
+
+
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.enumnullable_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+		}
+
+		[Fact]
+		public void EnumToInt() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new EnumTestMap { };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+			item = new EnumTestMap { enum_to_int = ToStringMapEnum.abc };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_int);
+
+			//update all
+			item.enum_to_int = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+			item.enum_to_int = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_int, find.enum_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+			//update set
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_int, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_int);
+
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enum_to_int, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_int);
+
+			//delete
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enum_to_int == ToStringMapEnum.abc).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void EnumNullableToInt() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new EnumTestMap { };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Null(find.enumnullable_to_int);
+
+			item = new EnumTestMap { enumnullable_to_int = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+			Assert.Equal(1, orm.Insert<EnumTestMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_int);
+
+			//update all
+			item.enumnullable_to_int = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_int);
+
+			item.enumnullable_to_int = null;
+			Assert.Equal(1, orm.Update<EnumTestMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_int, find.enumnullable_to_int);
+			Assert.Null(find.enumnullable_to_int);
+
+			//update set
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_int, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_int);
+
+
+			Assert.Equal(1, orm.Update<EnumTestMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_int, null).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.abc).First());
+			find = orm.Select<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.enumnullable_to_int);
+
+			//delete
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<EnumTestMap>().Where(a => a.id == item.id && a.enumnullable_to_int == null).ExecuteAffrows());
+			Assert.Null(orm.Select<EnumTestMap>().Where(a => a.id == item.id).First());
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/MapType/ToStringTest.cs

@@ -0,0 +1,565 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Numerics;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerMapType {
+	[Collection("SqlServerCollection")]
+	public class ToStringTest {
+		SqlServerFixture _sqlserverFixture;
+
+		public ToStringTest(SqlServerFixture sqlserverFixture) {
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		class ToStringMap {
+			public Guid id { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public TimeSpan timespan_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public TimeSpan? timespannullable_to_string { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public DateTime datetime_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public DateTime? datetimenullable_to_string { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public Guid guid_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public Guid? guidnullable_to_string { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public ToStringMapEnum enum_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public ToStringMapEnum? enumnullable_to_string { get; set; }
+
+			[Column(MapType = typeof(string))]
+			public BigInteger biginteger_to_string { get; set; }
+			[Column(MapType = typeof(string))]
+			public BigInteger? bigintegernullable_to_string { get; set; }
+		}
+		public enum ToStringMapEnum { <EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, abc, <EFBFBD><EFBFBD><EFBFBD><EFBFBD> }
+		[Fact]
+		public void Enum1() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			item = new ToStringMap { enum_to_string = ToStringMapEnum.abc };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+			//update all
+			item.enum_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			item.enum_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enum_to_string, find.enum_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enum_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enum_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enum_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enum_to_string == ToStringMapEnum.abc).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void EnumNullable() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Null(find.enumnullable_to_string);
+
+			item = new ToStringMap { enumnullable_to_string = ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD> };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+			//update all
+			item.enumnullable_to_string = ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Equal(ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, find.enumnullable_to_string);
+
+			item.enumnullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.enumnullable_to_string, find.enumnullable_to_string);
+			Assert.Null(find.enumnullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, ToStringMapEnum.abc).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(ToStringMapEnum.abc, find.enumnullable_to_string);
+
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.enumnullable_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.abc).First());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.enumnullable_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == ToStringMapEnum.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.enumnullable_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void BigInteger1() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 0).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.biginteger_to_string, find.biginteger_to_string);
+			Assert.Equal(0, find.biginteger_to_string);
+
+			item = new ToStringMap { biginteger_to_string = 100 };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 100).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.biginteger_to_string, find.biginteger_to_string);
+			Assert.Equal(100, find.biginteger_to_string);
+
+			//update all
+			item.biginteger_to_string = 200;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 200).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.biginteger_to_string, find.biginteger_to_string);
+			Assert.Equal(200, find.biginteger_to_string);
+
+			item.biginteger_to_string = 205;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 205).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.biginteger_to_string, find.biginteger_to_string);
+			Assert.Equal(205, find.biginteger_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.biginteger_to_string, 522).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 522).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(522, find.biginteger_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.biginteger_to_string, 10005).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 10005).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(10005, find.biginteger_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 522).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 205).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.biginteger_to_string == 10005).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void BigIntegerNullable() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.bigintegernullable_to_string, find.bigintegernullable_to_string);
+			Assert.Null(find.bigintegernullable_to_string);
+
+			item = new ToStringMap { bigintegernullable_to_string = 101 };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 101).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.bigintegernullable_to_string, find.bigintegernullable_to_string);
+			Assert.Equal(101, find.bigintegernullable_to_string);
+
+			//update all
+			item.bigintegernullable_to_string = 2004;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 2004).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.bigintegernullable_to_string, find.bigintegernullable_to_string);
+			Assert.Equal(2004, find.bigintegernullable_to_string);
+
+			item.bigintegernullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 2004).First());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.bigintegernullable_to_string, find.bigintegernullable_to_string);
+			Assert.Null(find.bigintegernullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.bigintegernullable_to_string, 998).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 998).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(998, find.bigintegernullable_to_string);
+
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.bigintegernullable_to_string, null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 998).First());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.bigintegernullable_to_string);
+
+			//delete
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 998).ExecuteAffrows());
+			Assert.Equal(0, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == 2004).ExecuteAffrows());
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.bigintegernullable_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void TimeSpan1() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespan_to_string, find.timespan_to_string);
+			Assert.Equal(TimeSpan.Zero, find.timespan_to_string);
+
+			item = new ToStringMap { timespan_to_string = TimeSpan.FromDays(1) };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespan_to_string, find.timespan_to_string);
+			Assert.Equal(TimeSpan.FromDays(1), find.timespan_to_string);
+
+			//update all
+			item.timespan_to_string = TimeSpan.FromHours(10);
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespan_to_string, find.timespan_to_string);
+			Assert.Equal(TimeSpan.FromHours(10), find.timespan_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.timespan_to_string, TimeSpan.FromHours(11)).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(TimeSpan.FromHours(11), find.timespan_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void TimeSpanNullable() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespannullable_to_string, find.timespannullable_to_string);
+			Assert.Null(find.timespannullable_to_string);
+
+			item = new ToStringMap { timespannullable_to_string = TimeSpan.FromDays(1) };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespannullable_to_string, find.timespannullable_to_string);
+			Assert.Equal(TimeSpan.FromDays(1), find.timespannullable_to_string);
+
+			//update all
+			item.timespannullable_to_string = TimeSpan.FromHours(10);
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespannullable_to_string, find.timespannullable_to_string);
+			Assert.Equal(TimeSpan.FromHours(10), find.timespannullable_to_string);
+
+			item.timespannullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.timespannullable_to_string, find.timespannullable_to_string);
+			Assert.Null(find.timespannullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.timespannullable_to_string, TimeSpan.FromHours(11)).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(TimeSpan.FromHours(11), find.timespannullable_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.timespannullable_to_string, null).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.timespannullable_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void DateTime1() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetime_to_string, find.datetime_to_string);
+			Assert.Equal(DateTime.MinValue, find.datetime_to_string);
+
+			item = new ToStringMap { datetime_to_string = DateTime.Parse("2000-1-1") };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetime_to_string, find.datetime_to_string);
+			Assert.Equal(DateTime.Parse("2000-1-1"), find.datetime_to_string);
+
+			//update all
+			item.datetime_to_string = DateTime.Parse("2000-1-11");
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetime_to_string, find.datetime_to_string);
+			Assert.Equal(DateTime.Parse("2000-1-11"), find.datetime_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.datetime_to_string, DateTime.Parse("2000-1-12")).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(DateTime.Parse("2000-1-12"), find.datetime_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void DateTimeNullable() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetimenullable_to_string, find.datetimenullable_to_string);
+			Assert.Null(find.datetimenullable_to_string);
+
+			item = new ToStringMap { datetimenullable_to_string = DateTime.Parse("2000-1-1") };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetimenullable_to_string, find.datetimenullable_to_string);
+			Assert.Equal(DateTime.Parse("2000-1-1"), find.datetimenullable_to_string);
+
+			//update all
+			item.datetimenullable_to_string = DateTime.Parse("2000-1-11");
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetimenullable_to_string, find.datetimenullable_to_string);
+			Assert.Equal(DateTime.Parse("2000-1-11"), find.datetimenullable_to_string);
+
+			item.datetimenullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.datetimenullable_to_string, find.datetimenullable_to_string);
+			Assert.Null(find.datetimenullable_to_string);
+
+			//update set
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.datetimenullable_to_string, DateTime.Parse("2000-1-12")).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(DateTime.Parse("2000-1-12"), find.datetimenullable_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.datetimenullable_to_string, null).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.datetimenullable_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+
+		[Fact]
+		public void Guid1() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == Guid.Empty).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guid_to_string, find.guid_to_string);
+			Assert.Equal(Guid.Empty, find.guid_to_string);
+
+			var newid = Guid.NewGuid();
+			item = new ToStringMap { guid_to_string = newid };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guid_to_string, find.guid_to_string);
+			Assert.Equal(newid, find.guid_to_string);
+
+			//update all
+			newid = Guid.NewGuid();
+			item.guid_to_string = newid;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guid_to_string, find.guid_to_string);
+			Assert.Equal(newid, find.guid_to_string);
+
+			//update set
+			newid = Guid.NewGuid();
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.guid_to_string, newid).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(newid, find.guid_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.guid_to_string == newid).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+		[Fact]
+		public void GuidNullable() {
+			//insert
+			var orm = _sqlserverFixture.SqlServer;
+			var item = new ToStringMap { };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			var find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guidnullable_to_string, find.guidnullable_to_string);
+			Assert.Null(find.guidnullable_to_string);
+
+			var newid = Guid.NewGuid();
+			item = new ToStringMap { guidnullable_to_string = newid };
+			Assert.Equal(1, orm.Insert<ToStringMap>().AppendData(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guidnullable_to_string, find.guidnullable_to_string);
+			Assert.Equal(newid, find.guidnullable_to_string);
+
+			//update all
+			newid = Guid.NewGuid();
+			item.guidnullable_to_string = newid;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guidnullable_to_string, find.guidnullable_to_string);
+			Assert.Equal(newid, find.guidnullable_to_string);
+
+			item.guidnullable_to_string = null;
+			Assert.Equal(1, orm.Update<ToStringMap>().SetSource(item).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(item.guidnullable_to_string, find.guidnullable_to_string);
+			Assert.Null(find.guidnullable_to_string);
+
+			//update set
+			newid = Guid.NewGuid();
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.guidnullable_to_string, newid).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == newid).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Equal(newid, find.guidnullable_to_string);
+
+			Assert.Equal(1, orm.Update<ToStringMap>().Where(a => a.id == item.id).Set(a => a.guidnullable_to_string, null).ExecuteAffrows());
+			find = orm.Select<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == null).First();
+			Assert.NotNull(find);
+			Assert.Equal(item.id, find.id);
+			Assert.Null(find.guidnullable_to_string);
+
+			//delete
+			Assert.Equal(1, orm.Delete<ToStringMap>().Where(a => a.id == item.id && a.guidnullable_to_string == null).ExecuteAffrows());
+			Assert.Null(orm.Select<ToStringMap>().Where(a => a.id == item.id).First());
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerAdo/SqlServerAdoTest.cs

@@ -0,0 +1,93 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServer {
+	[Collection("SqlServerCollection")]
+	public class SqlServerAdoTest
+	{
+		SqlServerFixture _sqlserverFixture;
+
+		public SqlServerAdoTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		[Fact]
+		public void Pool() {
+			var t1 = _sqlserverFixture.SqlServer.Ado.MasterPool.StatisticsFullily;
+		}
+
+		[Fact]
+		public void SlavePools() {
+			var t2 = _sqlserverFixture.SqlServer.Ado.SlavePools.Count;
+		}
+
+		[Fact]
+		public void ExecuteReader() {
+			
+		}
+		[Fact]
+		public void ExecuteArray() {
+			
+		}
+		[Fact]
+		public void ExecuteNonQuery() {
+			
+		}
+		[Fact]
+		public void ExecuteScalar() {
+			
+		}
+
+		[Fact]
+		public void Query() {
+
+			//var tt1 = _sqlserverFixture.SqlServer.Select<xxx>()
+			//	.LeftJoin(a => a.ParentId == a.Parent.Id)
+			//	.ToSql(a => new { a.Id, a.Title });
+
+			//var tt2result = _sqlserverFixture.SqlServer.Select<xxx>()
+			//	.LeftJoin(a => a.ParentId == a.Parent.Id)
+			//	.ToList(a => new { a.Id, a.Title });
+
+			//var tt = _sqlserverFixture.SqlServer.Select<xxx>()
+			//	.LeftJoin<xxx>((a, b) => b.Id == a.Id)
+			//	.ToSql(a => new { a.Id, a.Title });
+
+			//var ttresult = _sqlserverFixture.SqlServer.Select<xxx>()
+			//	.LeftJoin<xxx>((a, b) => b.Id == a.Id)
+			//	.ToList(a => new { a.Id, a.Title });
+
+			var tnsql1 = _sqlserverFixture.SqlServer.Select<xxx>().Where(a => a.Id > 0).Where(b => b.Title != null).Page(1, 3).ToSql(a => a.Id);
+			var tnsql2 = _sqlserverFixture.SqlServer.Select<xxx>().Where(a => a.Id > 0).Where(b => b.Title != null).Page(2, 3).ToSql(a => a.Id);
+
+			var tn1 = _sqlserverFixture.SqlServer.Select<xxx>().Where(a => a.Id > 0).Where(b => b.Title != null).Page(1, 3).ToList(a => a.Id);
+			var tn2 = _sqlserverFixture.SqlServer.Select<xxx>().Where(a => a.Id > 0).Where(b => b.Title != null).Page(2, 3).ToList(a => a.Id);
+
+			var t3 = _sqlserverFixture.SqlServer.Ado.Query<xxx>("select * from xxx");
+
+			var t4 = _sqlserverFixture.SqlServer.Ado.Query<(int, int, string, string DateTime)>("select * from xxx");
+
+			var t5 = _sqlserverFixture.SqlServer.Ado.Query<dynamic>(System.Data.CommandType.Text, "select * from xxx where Id = @Id", 
+				new System.Data.SqlClient.SqlParameter("Id", 1));
+		}
+
+		[Fact]
+		public void QueryMultipline() {
+			var tnsql1 = _sqlserverFixture.SqlServer.Select<xxx>().Where(a => a.Id > 0).Where(b => b.Title != null).Page(1, 3).ToSql(a => a.Id);
+
+			var t3 = _sqlserverFixture.SqlServer.Ado.Query<xxx, (int, string, string), dynamic>("select * from xxx; select * from xxx; select * from xxx");
+		}
+
+		class xxx {
+			public int Id { get; set; }
+			public int ParentId { get; set; }
+			public xxx Parent { get; set; }
+			public string Title { get; set; }
+			public string Url { get; set; }
+			public DateTime Create_time { get; set; }
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerCodeFirstTest.cs

@@ -0,0 +1,372 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServer {
+
+	[Collection("SqlServerCollection")]
+	public class SqlServerCodeFirstTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public SqlServerCodeFirstTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		[Fact]
+		public void <EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>_<EFBFBD>ֶ<EFBFBD>() {
+			var sql = _sqlserverFixture.SqlServer.CodeFirst.GetComparisonDDLStatements<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>>();
+			_sqlserverFixture.SqlServer.CodeFirst.SyncStructure<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>>();
+
+			var item = new <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD> {
+				<EFBFBD><EFBFBD><EFBFBD><EFBFBD> = "<22><><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>",
+				<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> = DateTime.Now
+			};
+			Assert.Equal(1, _sqlserverFixture.SqlServer.Insert<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>>().AppendData(item).ExecuteAffrows());
+			Assert.NotEqual(Guid.Empty, item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+			var item2 = _sqlserverFixture.SqlServer.Select<<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>>().Where(a => a.<EFBFBD><EFBFBD><EFBFBD><EFBFBD> == item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>).First();
+			Assert.NotNull(item2);
+			Assert.Equal(item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, item2.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+			Assert.Equal(item.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, item2.<EFBFBD><EFBFBD><EFBFBD><EFBFBD>);
+		}
+		class <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD> {
+			[Column(IsPrimary = true)]
+			public Guid <EFBFBD><EFBFBD><EFBFBD><EFBFBD> { get; set; }
+
+			public string <EFBFBD><EFBFBD><EFBFBD><EFBFBD> { get; set; }
+
+			public DateTime <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> { get; set; }
+		}
+
+
+		[Fact]
+		public void AddUniques() {
+			var sql = _sqlserverFixture.SqlServer.CodeFirst.GetComparisonDDLStatements<AddUniquesInfo>();
+			_sqlserverFixture.SqlServer.CodeFirst.SyncStructure<AddUniquesInfo>();
+		}
+		[Table(Name = "AddUniquesInfo", OldName = "AddUniquesInfo2")]
+		class AddUniquesInfo {
+			public Guid id { get; set; }
+			[Column(Unique = "uk_phone")]
+			public string phone { get; set; }
+
+			[Column(Unique = "uk_group_index, uk_group_index22")]
+			public string group { get; set; }
+			[Column(Unique = "uk_group_index")]
+			public int index { get; set; }
+			[Column(Unique = "uk_group_index22")]
+			public string index22 { get; set; }
+		}
+
+		[Fact]
+		public void AddField() {
+			var sql = _sqlserverFixture.SqlServer.CodeFirst.GetComparisonDDLStatements<TopicAddField>();
+
+			var id = _sqlserverFixture.SqlServer.Insert<TopicAddField>().AppendData(new TopicAddField { }).ExecuteIdentity();
+		}
+
+		[Table(Name = "dbo2.TopicAddField", OldName = "tedb1.dbo.TopicAddField")]
+		public class TopicAddField {
+			[Column(IsIdentity = true)]
+			public int Id { get; set; }
+
+			public int name { get; set; } = 3000;
+
+			[Column(DbType = "varchar(200) not null", OldName = "title")]
+			public string title222 { get; set; } = "333";
+
+			[Column(DbType = "varchar(200) not null")]
+			public string title222333 { get; set; } = "xxx";
+
+			[Column(DbType = "varchar(100) not null", OldName = "title122333aaa")]
+			public string titleaaa { get; set; } = "fsdf";
+
+			[Column(IsIgnore = true)]
+			public DateTime ct { get; set; } = DateTime.Now;
+		}
+
+		[Fact]
+		public void GetComparisonDDLStatements() {
+
+			var sql = _sqlserverFixture.SqlServer.CodeFirst.GetComparisonDDLStatements<TableAllType>();
+
+			sql = _sqlserverFixture.SqlServer.CodeFirst.GetComparisonDDLStatements<Tb_alltype>();
+		}
+
+		IInsert<TableAllType> insert => _sqlserverFixture.SqlServer.Insert<TableAllType>();
+		ISelect<TableAllType> select => _sqlserverFixture.SqlServer.Select<TableAllType>();
+
+		[Fact]
+		public void CurdAllField() {
+			var item = new TableAllType { };
+			item.Id = (int)insert.AppendData(item).ExecuteIdentity();
+
+			var newitem = select.Where(a => a.Id == item.Id).ToOne();
+
+			var item2 = new TableAllType {
+				testFieldBool = true,
+				testFieldBoolNullable = true,
+				testFieldByte = byte.MaxValue,
+				testFieldByteNullable = byte.MinValue,
+				testFieldBytes = Encoding.GetEncoding("gb2312").GetBytes("<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>"),
+				testFieldDateTime = DateTime.Now,
+				testFieldDateTimeNullable = DateTime.Now.AddHours(1),
+				testFieldDateTimeNullableOffset = new DateTimeOffset(DateTime.Now.AddHours(1), TimeSpan.FromHours(8)),
+				testFieldDateTimeOffset = new DateTimeOffset(DateTime.Now, TimeSpan.FromHours(8)),
+				testFieldDecimal = 998.99M,
+				testFieldDecimalNullable = 999.12M,
+				testFieldDouble = 99.199,
+				testFieldDoubleNullable = 99.211,
+				testFieldEnum1 = TableAllTypeEnumType1.e2,
+				testFieldEnum1Nullable = TableAllTypeEnumType1.e3,
+				testFieldEnum2 = TableAllTypeEnumType2.f3,
+				testFieldEnum2Nullable = TableAllTypeEnumType2.f2,
+				testFieldFloat = 0.99F,
+				testFieldFloatNullable = 0.11F,
+				testFieldGuid = Guid.NewGuid(),
+				testFieldGuidNullable = Guid.NewGuid(),
+				testFieldInt = int.MaxValue,
+				testFieldIntNullable = int.MinValue,
+				testFieldLong = long.MaxValue,
+				testFieldSByte = sbyte.MaxValue,
+				testFieldSByteNullable = sbyte.MinValue,
+				testFieldShort = short.MaxValue,
+				testFieldShortNullable = short.MinValue,
+				testFieldString = "<22><><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD>string",
+				testFieldTimeSpan = TimeSpan.FromSeconds(999),
+				testFieldTimeSpanNullable = TimeSpan.FromSeconds(30),
+				testFieldUInt = uint.MaxValue,
+				testFieldUIntNullable = uint.MinValue,
+				testFieldULong = ulong.MaxValue,
+				testFieldULongNullable = ulong.MinValue,
+				testFieldUShort = ushort.MaxValue,
+				testFieldUShortNullable = ushort.MinValue,
+				testFielLongNullable = long.MinValue
+			};
+
+			var sqlPar = insert.AppendData(item2).ToSql();
+			var sqlText = insert.AppendData(item2).NoneParameter().ToSql();
+
+			var item3 = insert.AppendData(item2).ExecuteInserted();
+			var newitem2 = select.Where(a => a.Id == item2.Id).ToOne();
+
+			var items = select.ToList();
+		}
+
+		[JsonObject(MemberSerialization.OptIn), Table(Name = "dbo.tb_alltype")]
+		public partial class Tb_alltype {
+
+			[JsonProperty, Column(Name = "Id", DbType = "int", IsPrimary = true, IsIdentity = true)]
+			public int Id { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldBool1111", DbType = "bit")]
+			public bool TestFieldBool1111 { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldBoolNullable", DbType = "bit", IsNullable = true)]
+			public bool? TestFieldBoolNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldByte", DbType = "tinyint")]
+			public sbyte TestFieldByte { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldByteNullable", DbType = "tinyint", IsNullable = true)]
+			public sbyte? TestFieldByteNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldBytes", DbType = "varbinary(255)", IsNullable = true)]
+			public byte[] TestFieldBytes { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDateTime", DbType = "datetime")]
+			public DateTime TestFieldDateTime { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDateTimeNullable", DbType = "datetime", IsNullable = true)]
+			public DateTime? TestFieldDateTimeNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDateTimeNullableOffset", DbType = "datetimeoffset", IsNullable = true)]
+			public DateTime? TestFieldDateTimeNullableOffset { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDateTimeOffset", DbType = "datetimeoffset")]
+			public DateTime TestFieldDateTimeOffset { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDecimal", DbType = "decimal(10,2)")]
+			public decimal TestFieldDecimal { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDecimalNullable", DbType = "decimal(10,2)", IsNullable = true)]
+			public decimal? TestFieldDecimalNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDouble", DbType = "float")]
+			public double TestFieldDouble { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldDoubleNullable", DbType = "float", IsNullable = true)]
+			public double? TestFieldDoubleNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldEnum1", DbType = "int")]
+			public int TestFieldEnum1 { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldEnum1Nullable", DbType = "int", IsNullable = true)]
+			public int? TestFieldEnum1Nullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldEnum2", DbType = "bigint")]
+			public long TestFieldEnum2 { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldEnum2Nullable", DbType = "bigint", IsNullable = true)]
+			public long? TestFieldEnum2Nullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldFloat", DbType = "real")]
+			public float TestFieldFloat { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldFloatNullable", DbType = "real", IsNullable = true)]
+			public float? TestFieldFloatNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldGuid", DbType = "uniqueidentifier")]
+			public Guid TestFieldGuid { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldGuidNullable", DbType = "uniqueidentifier", IsNullable = true)]
+			public Guid? TestFieldGuidNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldInt", DbType = "int")]
+			public int TestFieldInt { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldIntNullable", DbType = "int", IsNullable = true)]
+			public int? TestFieldIntNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldLong", DbType = "bigint")]
+			public long TestFieldLong { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldSByte", DbType = "tinyint")]
+			public sbyte TestFieldSByte { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldSByteNullable", DbType = "tinyint", IsNullable = true)]
+			public sbyte? TestFieldSByteNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldShort", DbType = "smallint")]
+			public short TestFieldShort { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldShortNullable", DbType = "smallint", IsNullable = true)]
+			public short? TestFieldShortNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldString", DbType = "nvarchar(255)", IsNullable = true)]
+			public string TestFieldString { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldTimeSpan", DbType = "time")]
+			public TimeSpan TestFieldTimeSpan { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldTimeSpanNullable", DbType = "time", IsNullable = true)]
+			public TimeSpan? TestFieldTimeSpanNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldUInt", DbType = "int")]
+			public int TestFieldUInt { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldUIntNullable", DbType = "int", IsNullable = true)]
+			public int? TestFieldUIntNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldULong", DbType = "bigint")]
+			public long TestFieldULong { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldULongNullable", DbType = "bigint", IsNullable = true)]
+			public long? TestFieldULongNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldUShort", DbType = "smallint")]
+			public short TestFieldUShort { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFieldUShortNullable", DbType = "smallint", IsNullable = true)]
+			public short? TestFieldUShortNullable { get; set; }
+
+
+			[JsonProperty, Column(Name = "testFielLongNullable", DbType = "bigint", IsNullable = true)]
+			public long? TestFielLongNullable { get; set; }
+		}
+
+		[Table(Name = "tb_alltype")]
+		class TableAllType {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+
+			[Column(Name = "testFieldBool1111")]
+			public bool testFieldBool { get; set; }
+			public sbyte testFieldSByte { get; set; }
+			public short testFieldShort { get; set; }
+			public int testFieldInt { get; set; }
+			public long testFieldLong { get; set; }
+			public byte testFieldByte { get; set; }
+			public ushort testFieldUShort { get; set; }
+			public uint testFieldUInt { get; set; }
+			public ulong testFieldULong { get; set; }
+			public double testFieldDouble { get; set; }
+			public float testFieldFloat { get; set; }
+			public decimal testFieldDecimal { get; set; }
+			public TimeSpan testFieldTimeSpan { get; set; }
+			public DateTime testFieldDateTime { get; set; }
+			public DateTimeOffset testFieldDateTimeOffset { get; set; }
+			public byte[] testFieldBytes { get; set; }
+			public string testFieldString { get; set; }
+			public Guid testFieldGuid { get; set; }
+
+			public bool? testFieldBoolNullable { get; set; }
+			public sbyte? testFieldSByteNullable { get; set; }
+			public short? testFieldShortNullable { get; set; }
+			public int? testFieldIntNullable { get; set; }
+			public long? testFielLongNullable { get; set; }
+			public byte? testFieldByteNullable { get; set; }
+			public ushort? testFieldUShortNullable { get; set; }
+			public uint? testFieldUIntNullable { get; set; }
+			public ulong? testFieldULongNullable { get; set; }
+			public double? testFieldDoubleNullable { get; set; }
+			public float? testFieldFloatNullable { get; set; }
+			public decimal? testFieldDecimalNullable { get; set; }
+			public TimeSpan? testFieldTimeSpanNullable { get; set; }
+			public DateTime? testFieldDateTimeNullable { get; set; }
+			public DateTimeOffset? testFieldDateTimeNullableOffset { get; set; }
+			public Guid? testFieldGuidNullable { get; set; }
+
+			public TableAllTypeEnumType1 testFieldEnum1 { get; set; }
+			public TableAllTypeEnumType1? testFieldEnum1Nullable { get; set; }
+			public TableAllTypeEnumType2 testFieldEnum2 { get; set; }
+			public TableAllTypeEnumType2? testFieldEnum2Nullable { get; set; }
+		}
+
+		public enum TableAllTypeEnumType1 { e1, e2, e3, e5 }
+		[Flags] public enum TableAllTypeEnumType2 { f1, f2, f3 }
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerDbFirstTest.cs

@@ -0,0 +1,31 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServer {
+	[Collection("SqlServerCollection")]
+	public class SqlServerDbFirstTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public SqlServerDbFirstTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		[Fact]
+		public void GetDatabases() {
+
+			var t1 = _sqlserverFixture.SqlServer.DbFirst.GetDatabases();
+
+		}
+
+		[Fact]
+		public void GetTablesByDatabase() {
+
+			var t2 = _sqlserverFixture.SqlServer.DbFirst.GetTablesByDatabase();
+
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/ConvertTest.cs

@@ -0,0 +1,155 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerExpression {
+	[Collection("SqlServerCollection")]
+	public class ConvertTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public ConvertTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		ISelect<Topic> select => _sqlserverFixture.SqlServer.Select<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestTypeInfo {
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+		}
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+		}
+
+		[Fact]
+		public void ToBoolean() {
+			var data = new List<object>();
+			data.Add(select.Where(a => (Convert.ToBoolean(a.Clicks) ? 1 : 0) > 0).ToList());
+			data.Add(select.Where(a => (bool.Parse(a.Clicks.ToString()) ? 1 : 0) > 0).ToList());
+		}
+		[Fact]
+		public void ToByte() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToByte(a.Clicks % 255) > 0).ToList());
+			data.Add(select.Where(a => byte.Parse((a.Clicks % 255).ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToChar() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToChar(a.Clicks) == '1').ToList());
+			data.Add(select.Where(a => char.Parse(a.Clicks.ToString()) == '1').ToList());
+		}
+		[Fact]
+		public void ToDateTime() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToDateTime(a.CreateTime.ToString()).Year > 0).ToList());
+			data.Add(select.Where(a => DateTime.Parse(a.CreateTime.ToString()).Year > 0).ToList());
+		}
+		[Fact]
+		public void ToDecimal() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToDecimal(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => decimal.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToDouble() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToDouble(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => double.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToInt16() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToInt16(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => short.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToInt32() {
+			var data = new List<object>();
+			data.Add(select.Where(a => (int)a.Clicks > 0).ToList());
+			data.Add(select.Where(a => Convert.ToInt32(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => int.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToInt64() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToInt64(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => long.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToSByte() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToSByte(a.Clicks % 128) > 0).ToList());
+			data.Add(select.Where(a => sbyte.Parse((a.Clicks % 128).ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToSingle() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToSingle(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => float.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void this_ToString() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToString(a.Clicks).Equals("")).ToList());
+			data.Add(select.Where(a => a.Clicks.ToString().Equals("")).ToList());
+		}
+		[Fact]
+		public void ToUInt16() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToUInt16(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => ushort.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToUInt32() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToUInt32(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => uint.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+		[Fact]
+		public void ToUInt64() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Convert.ToUInt64(a.Clicks) > 0).ToList());
+			data.Add(select.Where(a => ulong.Parse(a.Clicks.ToString()) > 0).ToList());
+		}
+
+		[Fact]
+		public void Guid_Parse() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Guid.Parse(Guid.NewGuid().ToString()) == Guid.Empty).ToList());
+		}
+
+		[Fact]
+		public void Guid_NewGuid() {
+			var data = new List<object>();
+			data.Add(select.OrderBy(a => Guid.NewGuid()).Limit(10).ToList());
+		}
+
+		[Fact]
+		public void Random() {
+			var data = new List<object>();
+			data.Add(select.Where(a => new Random().Next() > a.Clicks).Limit(10).ToList());
+			data.Add(select.Where(a => new Random().NextDouble() > a.Clicks).Limit(10).ToList());
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/DateTimeTest.cs

@@ -0,0 +1,292 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerExpression {
+	[Collection("SqlServerCollection")]
+	public class DateTimeTest
+	{
+		SqlServerFixture _sqlserverFixture;
+
+		public DateTimeTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		ISelect<Topic> select => _sqlserverFixture.SqlServer.Select<Topic>();
+
+		[Table(Name = "tb_topic111333")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		[Table(Name = "TestTypeInfo333")]
+		class TestTypeInfo {
+			[Column(IsIdentity = true)]
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+			public DateTime Time { get; set; }
+		}
+		[Table(Name = "TestTypeParentInfo23123")]
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+			public DateTime Time2 { get; set; }
+		}
+		[Fact]
+		public void Now() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToList());
+		}
+		[Fact]
+		public void UtcNow() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.UtcNow.Date).ToList());
+		}
+		[Fact]
+		public void MinValue() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.MinValue.Date).ToList());
+		}
+		[Fact]
+		public void MaxValue() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.MaxValue.Date).ToList());
+		}
+		[Fact]
+		public void Date() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToList());
+			data.Add(select.Where(a => a.Type.Time.Date > DateTime.Now.Date).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Date > DateTime.Now.Date).ToList());
+
+			data.Add(select.Where(a => DateTime.Now.Subtract(a.CreateTime.Date).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => DateTime.Now.Subtract(a.Type.Time.Date).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => DateTime.Now.Subtract(a.Type.Parent.Time2.Date).TotalSeconds > 0).ToList());
+		}
+		[Fact]
+		public void TimeOfDay() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay == DateTime.Now.TimeOfDay).ToList());
+			data.Add(select.Where(a => a.Type.Time.TimeOfDay > DateTime.Now.TimeOfDay).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.TimeOfDay > DateTime.Now.TimeOfDay).ToList());
+		}
+		[Fact]
+		public void DayOfWeek() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+			data.Add(select.Where(a => a.Type.Time.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.DayOfWeek > DateTime.Now.DayOfWeek).ToList());
+		}
+		[Fact]
+		public void Day() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Day > DateTime.Now.Day).ToList());
+			data.Add(select.Where(a => a.Type.Time.Day > DateTime.Now.Day).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Day > DateTime.Now.Day).ToList());
+		}
+		[Fact]
+		public void DayOfYear() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.DayOfYear > DateTime.Now.DayOfYear).ToList());
+			data.Add(select.Where(a => a.Type.Time.DayOfYear > DateTime.Now.DayOfYear).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.DayOfYear > DateTime.Now.DayOfYear).ToList());
+		}
+		[Fact]
+		public void Month() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Month > DateTime.Now.Month).ToList());
+			data.Add(select.Where(a => a.Type.Time.Month > DateTime.Now.Month).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Month > DateTime.Now.Month).ToList());
+		}
+		[Fact]
+		public void Year() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Year > DateTime.Now.Year).ToList());
+			data.Add(select.Where(a => a.Type.Time.Year > DateTime.Now.Year).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Year > DateTime.Now.Year).ToList());
+		}
+		[Fact]
+		public void Hour() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Hour > DateTime.Now.Hour).ToList());
+			data.Add(select.Where(a => a.Type.Time.Hour > DateTime.Now.Hour).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Hour > DateTime.Now.Hour).ToList());
+		}
+		[Fact]
+		public void Minute() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Minute > DateTime.Now.Minute).ToList());
+			data.Add(select.Where(a => a.Type.Time.Minute > DateTime.Now.Minute).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Minute > DateTime.Now.Minute).ToList());
+		}
+		[Fact]
+		public void Second() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Second > DateTime.Now.Second).ToList());
+			data.Add(select.Where(a => a.Type.Time.Second > DateTime.Now.Second).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Second > DateTime.Now.Second).ToList());
+		}
+		[Fact]
+		public void Millisecond() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Millisecond > DateTime.Now.Millisecond).ToList());
+			data.Add(select.Where(a => a.Type.Time.Millisecond > DateTime.Now.Millisecond).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Millisecond > DateTime.Now.Millisecond).ToList());
+		}
+		[Fact]
+		public void Ticks() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Ticks > DateTime.Now.Ticks).ToList());
+			data.Add(select.Where(a => a.Type.Time.Ticks > DateTime.Now.Ticks).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Ticks > DateTime.Now.Ticks).ToList());
+		}
+		[Fact]
+		public void Add() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Add(TimeSpan.FromDays(1)) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void AddDays() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddDays(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddDays(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddDays(1) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void AddHours() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddHours(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddHours(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddHours(1) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void AddMilliseconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddMilliseconds(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddMilliseconds(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddMilliseconds(1) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void AddMinutes() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddMinutes(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddMinutes(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddMinutes(1) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void AddMonths() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddMonths(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddMonths(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddMonths(1) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void AddSeconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddSeconds(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddSeconds(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddSeconds(1) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void AddTicks() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddTicks(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddTicks(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddTicks(1) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void AddYears() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddYears(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddYears(1) > DateTime.Now).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1) > DateTime.Now).ToList());
+		}
+		[Fact]
+		public void Subtract() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => a.Type.Time.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Subtract(DateTime.Now).TotalSeconds > 0).ToList());
+
+			data.Add(select.Where(a => a.CreateTime.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+			data.Add(select.Where(a => a.Type.Time.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.Subtract(TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+		}
+		[Fact]
+		public void <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>_Ч<EFBFBD><EFBFBD>ͬSubtract() {
+			var data = new List<object>();
+			data.Add(select.Where(a => (a.CreateTime - DateTime.Now).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => (a.Type.Time - DateTime.Now).TotalSeconds > 0).ToList());
+			data.Add(select.Where(a => (a.Type.Parent.Time2 - DateTime.Now).TotalSeconds > 0).ToList());
+
+			data.Add(select.Where(a => (a.CreateTime - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+			data.Add(select.Where(a => (a.Type.Time - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+			data.Add(select.Where(a => (a.Type.Parent.Time2 - TimeSpan.FromDays(1)) > a.CreateTime).ToList());
+		}
+		[Fact]
+		public void this_Equals() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.AddYears(1).Equals(DateTime.Now)).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddYears(1).Equals(DateTime.Now)).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).Equals(DateTime.Now)).ToList());
+		}
+		[Fact]
+		public void this_ToString() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.ToString().Equals(DateTime.Now)).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddYears(1).ToString().Equals(DateTime.Now)).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).ToString().Equals(DateTime.Now)).ToList());
+		}
+
+		[Fact]
+		public void DateTime_Compare() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.CompareTo(DateTime.Now) == 0).ToList());
+			data.Add(select.Where(a => a.Type.Time.AddYears(1).CompareTo(DateTime.Now) == 0).ToList());
+			data.Add(select.Where(a => a.Type.Parent.Time2.AddYears(1).CompareTo(DateTime.Now) == 0).ToList());
+		}
+		[Fact]
+		public void DateTime_DaysInMonth() {
+			var data = new List<object>();
+			data.Add(select.Where(a => DateTime.DaysInMonth(a.CreateTime.Year, a.CreateTime.Month) > 30).ToList());
+			data.Add(select.Where(a => DateTime.DaysInMonth(a.Type.Time.Year, a.Type.Time.Month) > 30).ToList());
+			data.Add(select.Where(a => DateTime.DaysInMonth(a.Type.Parent.Time2.Year, a.Type.Parent.Time2.Month) > 30).ToList());
+		}
+		[Fact]
+		public void DateTime_Equals() {
+			var data = new List<object>();
+			data.Add(select.Where(a => DateTime.Equals(a.CreateTime.AddYears(1), DateTime.Now)).ToList());
+			data.Add(select.Where(a => DateTime.Equals(a.Type.Time.AddYears(1), DateTime.Now)).ToList());
+			data.Add(select.Where(a => DateTime.Equals(a.Type.Parent.Time2.AddYears(1), DateTime.Now)).ToList());
+		}
+		[Fact]
+		public void DateTime_IsLeapYear() {
+			var data = new List<object>();
+			data.Add(select.Where(a => DateTime.IsLeapYear(a.CreateTime.Year)).ToList());
+			data.Add(select.Where(a => DateTime.IsLeapYear(a.Type.Time.AddYears(1).Year)).ToList());
+			data.Add(select.Where(a => DateTime.IsLeapYear(a.Type.Parent.Time2.AddYears(1).Year)).ToList());
+		}
+		[Fact]
+		public void DateTime_Parse() {
+			var data = new List<object>();
+			data.Add(select.Where(a => DateTime.Parse(a.CreateTime.ToString()) > DateTime.Now).ToList());
+			data.Add(select.Where(a => DateTime.Parse(a.Type.Time.AddYears(1).ToString()) > DateTime.Now).ToList());
+			data.Add(select.Where(a => DateTime.Parse(a.Type.Parent.Time2.AddYears(1).ToString()) > DateTime.Now).ToList());
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/MathTest.cs

@@ -0,0 +1,141 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerExpression {
+	[Collection("SqlServerCollection")]
+	public class MathTest
+	{
+		SqlServerFixture _sqlserverFixture;
+
+		public MathTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		ISelect<Topic> select => _sqlserverFixture.SqlServer.Select<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestTypeInfo {
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+		}
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+		}
+
+		[Fact]
+		public void PI() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.PI + a.Clicks > 0).ToList());
+		}
+		[Fact]
+		public void Abs() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Abs(-a.Clicks) > 0).ToList());
+		}
+		[Fact]
+		public void Sign() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Sign(-a.Clicks) > 0).ToList());
+		}
+		[Fact]
+		public void Floor() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Floor(a.Clicks + 0.5) == a.Clicks).ToList());
+		}
+		[Fact]
+		public void Ceiling() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Ceiling(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Round() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Round(a.Clicks + 0.5) == a.Clicks).ToList());
+			data.Add(select.Where(a => Math.Round(a.Clicks + 0.5, 1) > a.Clicks).ToList());
+		}
+		[Fact]
+		public void Exp() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Exp(1) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Log() {
+			//var data = new List<object>();
+			//data.Add(select.Where(a => Math.Log(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Log10() {
+			//var data = new List<object>();
+			//data.Add(select.Where(a => Math.Log10(a.Clicks + 0.5) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Pow() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Pow(2, a.Clicks) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Sqrt() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Sqrt(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Cos() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Cos(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Sin() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Sin(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Tan() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Tan(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Acos() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Acos(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Asin() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Asin(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Atan() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Atan(Math.Pow(2, a.Clicks)) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Atan2() {
+			var data = new List<object>();
+			//data.Add(select.Where(a => Math.Atan2(2, a.Clicks) == a.Clicks + 1).ToList());
+		}
+		[Fact]
+		public void Truncate() {
+			var data = new List<object>();
+			data.Add(select.Where(a => Math.Truncate(a.Clicks * 1.0 / 3) == a.Clicks + 1).ToList());
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/OtherTest.cs

@@ -0,0 +1,117 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerExpression {
+	[Collection("SqlServerCollection")]
+	public class OtherTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public OtherTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		ISelect<TableAllType> select => _sqlserverFixture.SqlServer.Select<TableAllType>();
+
+		[Fact]
+		public void Boolean() {
+			var t1 = select.Where(a => a.testFieldBool == true).ToList();
+			var t2 = select.Where(a => a.testFieldBool != true).ToList();
+			var t3 = select.Where(a => a.testFieldBool == false).ToList();
+			var t4 = select.Where(a => !a.testFieldBool).ToList();
+			var t5 = select.Where(a => a.testFieldBool).ToList();
+
+			var t11 = select.Where(a => a.testFieldBoolNullable == true).ToList();
+			var t22 = select.Where(a => a.testFieldBoolNullable != true).ToList();
+			var t33 = select.Where(a => a.testFieldBoolNullable == false).ToList();
+			var t44 = select.Where(a => !a.testFieldBoolNullable.Value).ToList();
+			var t55 = select.Where(a => a.testFieldBoolNullable.Value).ToList();
+		}
+
+		[Fact]
+		public void Array() {
+			IEnumerable<int> testlinqlist = new List<int>(new[] { 1, 2, 3 });
+			var testlinq = select.Where(a => testlinqlist.Contains(a.testFieldInt)).ToList();
+
+			//in not in
+			var sql111 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+			var sql112 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt) == false).ToList();
+			var sql113 = select.Where(a => !new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+
+			var inarray = new[] { 1, 2, 3 };
+			var sql1111 = select.Where(a => inarray.Contains(a.testFieldInt)).ToList();
+			var sql1122 = select.Where(a => inarray.Contains(a.testFieldInt) == false).ToList();
+			var sql1133 = select.Where(a => !inarray.Contains(a.testFieldInt)).ToList();
+
+			//in not in
+			var sql11111 = select.Where(a => new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+			var sql11222 = select.Where(a => new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt) == false).ToList();
+			var sql11333 = select.Where(a => !new List<int>() { 1, 2, 3 }.Contains(a.testFieldInt)).ToList();
+
+			var sql11111a = select.Where(a => new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt)).ToList();
+			var sql11222b = select.Where(a => new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt) == false).ToList();
+			var sql11333c = select.Where(a => !new List<int>(new[] { 1, 2, 3 }).Contains(a.testFieldInt)).ToList();
+
+			var inarray2 = new List<int>() { 1, 2, 3 };
+			var sql111111 = select.Where(a => inarray.Contains(a.testFieldInt)).ToList();
+			var sql112222 = select.Where(a => inarray.Contains(a.testFieldInt) == false).ToList();
+			var sql113333 = select.Where(a => !inarray.Contains(a.testFieldInt)).ToList();
+		}
+
+		[Table(Name = "tb_alltype")]
+		class TableAllType {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+
+			[Column(Name = "testFieldBool1111")]
+			public bool testFieldBool { get; set; }
+			public sbyte testFieldSByte { get; set; }
+			public short testFieldShort { get; set; }
+			public int testFieldInt { get; set; }
+			public long testFieldLong { get; set; }
+			public byte testFieldByte { get; set; }
+			public ushort testFieldUShort { get; set; }
+			public uint testFieldUInt { get; set; }
+			public ulong testFieldULong { get; set; }
+			public double testFieldDouble { get; set; }
+			public float testFieldFloat { get; set; }
+			public decimal testFieldDecimal { get; set; }
+			public TimeSpan testFieldTimeSpan { get; set; }
+			public DateTime testFieldDateTime { get; set; }
+			public DateTimeOffset testFieldDateTimeOffset { get; set; }
+			public byte[] testFieldBytes { get; set; }
+			public string testFieldString { get; set; }
+			public Guid testFieldGuid { get; set; }
+
+			public bool? testFieldBoolNullable { get; set; }
+			public sbyte? testFieldSByteNullable { get; set; }
+			public short? testFieldShortNullable { get; set; }
+			public int? testFieldIntNullable { get; set; }
+			public long? testFielLongNullable { get; set; }
+			public byte? testFieldByteNullable { get; set; }
+			public ushort? testFieldUShortNullable { get; set; }
+			public uint? testFieldUIntNullable { get; set; }
+			public ulong? testFieldULongNullable { get; set; }
+			public double? testFieldDoubleNullable { get; set; }
+			public float? testFieldFloatNullable { get; set; }
+			public decimal? testFieldDecimalNullable { get; set; }
+			public TimeSpan? testFieldTimeSpanNullable { get; set; }
+			public DateTime? testFieldDateTimeNullable { get; set; }
+			public DateTimeOffset? testFieldDateTimeNullableOffset { get; set; }
+			public Guid? testFieldGuidNullable { get; set; }
+
+			public TableAllTypeEnumType1 testFieldEnum1 { get; set; }
+			public TableAllTypeEnumType1? testFieldEnum1Nullable { get; set; }
+			public TableAllTypeEnumType2 testFieldEnum2 { get; set; }
+			public TableAllTypeEnumType2? testFieldEnum2Nullable { get; set; }
+		}
+
+		public enum TableAllTypeEnumType1 { e1, e2, e3, e5 }
+		[Flags] public enum TableAllTypeEnumType2 { f1, f2, f3 }
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/StringTest.cs

@@ -0,0 +1,265 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerExpression {
+	[Collection("SqlServerCollection")]
+	public class StringTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public StringTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		ISelect<Topic> select => _sqlserverFixture.SqlServer.Select<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestTypeInfo {
+			[Column(IsIdentity = true)]
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+		}
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+		}
+		class TestEqualsGuid {
+			public Guid id { get; set; }
+		}
+
+		[Fact]
+		public void Equals__() {
+			var list = new List<object>();
+			list.Add(select.Where(a => a.Title.Equals("aaa")).ToList());
+			list.Add(_sqlserverFixture.SqlServer.Select<TestEqualsGuid>().Where(a => a.id.Equals(Guid.Empty)).ToList());
+		}
+
+		[Fact]
+		public void Empty() {
+			var data = new List<object>();
+			data.Add(select.Where(a => (a.Title ?? "") == string.Empty).ToSql());
+		}
+
+		[Fact]
+		public void StartsWith() {
+			var list = new List<object>();
+			list.Add(select.Where(a => a.Title.StartsWith("aaa")).ToList());
+			list.Add(select.Where(a => a.Title.StartsWith(a.Title)).ToList());
+			list.Add(select.Where(a => a.Title.StartsWith(a.Title + 1)).ToList());
+			list.Add(select.Where(a => a.Title.StartsWith(a.Type.Name)).ToList());
+
+			list.Add(select.Where(a => (a.Title + "aaa").StartsWith("aaa")).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Title)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Title + 1)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").StartsWith(a.Type.Name)).ToList());
+		}
+		[Fact]
+		public void EndsWith() {
+			var list = new List<object>();
+			list.Add(select.Where(a => a.Title.EndsWith("aaa")).ToList());
+			list.Add(select.Where(a => a.Title.EndsWith(a.Title)).ToList());
+			list.Add(select.Where(a => a.Title.EndsWith(a.Title + 1)).ToList());
+			list.Add(select.Where(a => a.Title.EndsWith(a.Type.Name)).ToList());
+
+			list.Add(select.Where(a => (a.Title + "aaa").EndsWith("aaa")).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Title)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Title + 1)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").EndsWith(a.Type.Name)).ToList());
+		}
+		[Fact]
+		public void Contains() {
+			var list = new List<object>();
+			list.Add(select.Where(a => a.Title.Contains("aaa")).ToList());
+			list.Add(select.Where(a => a.Title.Contains(a.Title)).ToList());
+			list.Add(select.Where(a => a.Title.Contains(a.Title + 1)).ToList());
+			list.Add(select.Where(a => a.Title.Contains(a.Type.Name)).ToList());
+
+			list.Add(select.Where(a => (a.Title + "aaa").Contains("aaa")).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Title + 1)).ToList());
+			list.Add(select.Where(a => (a.Title + "aaa").Contains(a.Type.Name)).ToList());
+		}
+		[Fact]
+		public void ToLower() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.ToLower() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.ToLower() == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.ToLower() == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.ToLower() == a.Type.Name).ToList());
+
+			data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.ToLower() + "aaa").ToLower() == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void ToUpper() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.ToUpper() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.ToUpper() == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.ToUpper() == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.ToUpper() == a.Type.Name).ToList());
+
+			data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.ToUpper() + "aaa").ToUpper() == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void Substring() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.Substring(0) == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.Substring(0) == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.Substring(0) == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.Substring(0) == a.Type.Name).ToList());
+
+			data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(a.Title.Length) == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(0, a.Title.Length) == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(0, 3) == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.Substring(0) + "aaa").Substring(1, 2) == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void Length() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.Length == 0).ToList());
+			data.Add(select.Where(a => a.Title.Length == 1).ToList());
+			data.Add(select.Where(a => a.Title.Length == a.Title.Length + 1).ToList());
+			data.Add(select.Where(a => a.Title.Length == a.Type.Name.Length).ToList());
+
+			data.Add(select.Where(a => (a.Title + "aaa").Length == 0).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").Length == 1).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").Length == a.Title.Length + 1).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").Length == a.Type.Name.Length).ToList());
+		}
+		[Fact]
+		public void IndexOf() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.IndexOf("aaa") == -1).ToList());
+			data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == -1).ToList());
+			data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == (a.Title.Length + 1)).ToList());
+			data.Add(select.Where(a => a.Title.IndexOf("aaa", 2) == a.Type.Name.Length + 1).ToList());
+
+			data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa") == -1).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == -1).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == (a.Title.Length + 1)).ToList());
+			data.Add(select.Where(a => (a.Title + "aaa").IndexOf("aaa", 2) == a.Type.Name.Length + 1).ToList());
+		}
+		[Fact]
+		public void PadLeft() {
+			//var data = new List<object>();
+			//data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == "aaa").ToList());
+			//data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == a.Title).ToList());
+			//data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == (a.Title + 1)).ToList());
+			//data.Add(select.Where(a => a.Title.PadLeft(10, 'a') == a.Type.Name).ToList());
+
+			//data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == "aaa").ToList());
+			//data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == a.Title).ToList());
+			//data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == (a.Title + 1)).ToList());
+			//data.Add(select.Where(a => (a.Title.PadLeft(10, 'a') + "aaa").PadLeft(20, 'b') == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void PadRight() {
+			//var data = new List<object>();
+			//data.Add(select.Where(a => a.Title.PadRight(10, 'a') == "aaa").ToList());
+			//data.Add(select.Where(a => a.Title.PadRight(10, 'a') == a.Title).ToList());
+			//data.Add(select.Where(a => a.Title.PadRight(10, 'a') == (a.Title + 1)).ToList());
+			//data.Add(select.Where(a => a.Title.PadRight(10, 'a') == a.Type.Name).ToList());
+
+			//data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == "aaa").ToList());
+			//data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == a.Title).ToList());
+			//data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == (a.Title + 1)).ToList());
+			//data.Add(select.Where(a => (a.Title.PadRight(10, 'a') + "aaa").PadRight(20, 'b') == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void Trim() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.Trim() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.Trim('a') == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.Trim('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.Trim('a', 'b', 'c') == a.Type.Name).ToList());
+
+			data.Add(select.Where(a => (a.Title.Trim() + "aaa").Trim() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.Trim('a') + "aaa").Trim('a') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.Trim('a', 'b') + "aaa").Trim('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.Trim('a', 'b', 'c') + "aaa").Trim('a', 'b', 'c') == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void TrimStart() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.TrimStart() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.TrimStart('a') == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.TrimStart('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.TrimStart('a', 'b', 'c') == a.Type.Name).ToList());
+
+			data.Add(select.Where(a => (a.Title.TrimStart() + "aaa").TrimStart() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.TrimStart('a') + "aaa").TrimStart('a') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.TrimStart('a', 'b') + "aaa").TrimStart('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.TrimStart('a', 'b', 'c') + "aaa").TrimStart('a', 'b', 'c') == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void TrimEnd() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.TrimEnd() == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.TrimEnd('a') == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+
+			data.Add(select.Where(a => (a.Title.TrimEnd() + "aaa").TrimEnd() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.TrimEnd('a') + "aaa").TrimEnd('a') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.TrimEnd('a', 'b') + "aaa").TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.TrimEnd('a', 'b', 'c') + "aaa").TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void Replace() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.Title.Replace("a", "b") == "aaa").ToList());
+			data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c") == a.Title).ToList());
+			data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c").Replace("c", "a") == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => a.Title.Replace("a", "b").Replace("b", "c").Replace(a.Type.Name, "a") == a.Type.Name).ToList());
+
+			data.Add(select.Where(a => (a.Title.Replace("a", "b") + "aaa").TrimEnd() == "aaa").ToList());
+			data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c") + "aaa").TrimEnd('a') == a.Title).ToList());
+			data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c").Replace("c", "a") + "aaa").TrimEnd('a', 'b') == (a.Title + 1)).ToList());
+			data.Add(select.Where(a => (a.Title.Replace("a", "b").Replace("b", "c").Replace(a.Type.Name, "a") + "aaa").TrimEnd('a', 'b', 'c') == a.Type.Name).ToList());
+		}
+		[Fact]
+		public void CompareTo() {
+			//var data = new List<object>();
+			//data.Add(select.Where(a => a.Title.CompareTo(a.Title) == 0).ToList());
+			//data.Add(select.Where(a => a.Title.CompareTo(a.Title) > 0).ToList());
+			//data.Add(select.Where(a => a.Title.CompareTo(a.Title + 1) == 0).ToList());
+			//data.Add(select.Where(a => a.Title.CompareTo(a.Title + a.Type.Name) == 0).ToList());
+
+			//data.Add(select.Where(a => (a.Title + "aaa").CompareTo("aaa") == 0).ToList());
+			//data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Title) > 0).ToList());
+			//data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Title + 1) == 0).ToList());
+			//data.Add(select.Where(a => (a.Title + "aaa").CompareTo(a.Type.Name) == 0).ToList());
+		}
+
+		[Fact]
+		public void string_IsNullOrEmpty() {
+			var data = new List<object>();
+			data.Add(select.Where(a => string.IsNullOrEmpty(a.Title)).ToList());
+			//data.Add(select.Where(a => string.IsNullOrEmpty(a.Title) == false).ToList());
+			data.Add(select.Where(a => !string.IsNullOrEmpty(a.Title)).ToList());
+		}
+	}
+}

FreeSql.Tests/FreeSql.Tests/SqlServer/SqlServerExpression/TimeSpanTest.cs

@@ -0,0 +1,185 @@
+using FreeSql.DataAnnotations;
+using FreeSql.Tests.DataContext.SqlServer;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Xunit;
+
+namespace FreeSql.Tests.SqlServerExpression {
+	[Collection("SqlServerCollection")]
+	public class TimeSpanTest {
+
+		SqlServerFixture _sqlserverFixture;
+
+		public TimeSpanTest(SqlServerFixture sqlserverFixture)
+		{
+			_sqlserverFixture = sqlserverFixture;
+		}
+
+		ISelect<Topic> select => _sqlserverFixture.SqlServer.Select<Topic>();
+
+		[Table(Name = "tb_topic")]
+		class Topic {
+			[Column(IsIdentity = true, IsPrimary = true)]
+			public int Id { get; set; }
+			public int Clicks { get; set; }
+			public int TypeGuid { get; set; }
+			public TestTypeInfo Type { get; set; }
+			public string Title { get; set; }
+			public DateTime CreateTime { get; set; }
+		}
+		class TestTypeInfo {
+			public int Guid { get; set; }
+			public int ParentId { get; set; }
+			public TestTypeParentInfo Parent { get; set; }
+			public string Name { get; set; }
+		}
+		class TestTypeParentInfo {
+			public int Id { get; set; }
+			public string Name { get; set; }
+
+			public List<TestTypeInfo> Types { get; set; }
+		}
+		[Fact]
+		public void Zero() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay > TimeSpan.Zero).ToList());
+		}
+		[Fact]
+		public void MinValue() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay > TimeSpan.MinValue).ToList());
+		}
+		[Fact]
+		public void MaxValue() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay < TimeSpan.MaxValue).ToList());
+		}
+		[Fact]
+		public void Days() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Days == 0).ToList());
+		}
+		[Fact]
+		public void Hours() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Hours > 0).ToSql());
+		}
+		[Fact]
+		public void Milliseconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Milliseconds > 0).ToList());
+		}
+		[Fact]
+		public void Minutes() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Minutes > 0).ToList());
+		}
+		[Fact]
+		public void Seconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Seconds > 0).ToList());
+		}
+		[Fact]
+		public void Ticks() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Ticks > 0).ToList());
+		}
+		[Fact]
+		public void TotalDays() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalDays > 0).ToList());
+		}
+		[Fact]
+		public void TotalHours() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalHours > 0).ToList());
+		}
+		[Fact]
+		public void TotalMilliseconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalMilliseconds > 0).ToList());
+		}
+		[Fact]
+		public void TotalMinutes() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalMinutes > 0).ToSql());
+		}
+		[Fact]
+		public void TotalSeconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.TotalSeconds > 0).ToList());
+		}
+		[Fact]
+		public void Add() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Add(TimeSpan.FromDays(1)) > TimeSpan.Zero).ToList());
+		}
+		[Fact]
+		public void Subtract() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Subtract(TimeSpan.FromDays(1)) > TimeSpan.Zero).ToList());
+		}
+		[Fact]
+		public void CompareTo() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.CompareTo(TimeSpan.FromDays(1)) > 0).ToList());
+		}
+		[Fact]
+		public void this_Equals() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.Equals(TimeSpan.FromDays(1))).ToList());
+		}
+		[Fact]
+		public void this_ToString() {
+			var data = new List<object>();
+			data.Add(select.Where(a => a.CreateTime.TimeOfDay.ToString() == "ssss").ToList());
+		}
+
+		[Fact]
+		public void TimeSpan_Compare() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Compare(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1)) > 0).ToList());
+		}
+		[Fact]
+		public void TimeSpan_Equals() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1))).ToList());
+		}
+		[Fact]
+		public void TimeSpan_FromDays() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromDays(1))).ToList());
+		}
+		[Fact]
+		public void TimeSpan_FromHours() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromHours(1))).ToList());
+		}
+		[Fact]
+		public void TimeSpan_FromMilliseconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromMilliseconds(1))).ToList());
+		}
+		[Fact]
+		public void TimeSpan_FromMinutes() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromMinutes(1))).ToList());
+		}
+		[Fact]
+		public void TimeSpan_FromSeconds() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromSeconds(1))).ToList());
+		}
+		[Fact]
+		public void TimeSpan_FromTicks() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Equals(a.CreateTime.TimeOfDay, TimeSpan.FromTicks(1))).ToList());
+		}
+		[Fact]
+		public void TimeSpan_Parse() {
+			var data = new List<object>();
+			data.Add(select.Where(a => TimeSpan.Parse(a.CreateTime.TimeOfDay.ToString()) > TimeSpan.Zero).ToList());
+		}
+	}
+}