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完成v0.3.17所有数据库的测试
This commit is contained in:
28810
330
readme.md
330
readme.md
@ -5,7 +5,7 @@ FreeSql 是一个功能强大的 .NETStandard 库，用于对象关系映射程
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| FreeSql | [](https://www.nuget.org/packages/FreeSql) | [](https://www.nuget.org/stats/packages/FreeSql?groupby=Version) |
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| [FreeSql.Repository](https://github.com/2881099/FreeSql/wiki/Repository) | [](https://www.nuget.org/packages/FreeSql.Repository) | [](https://www.nuget.org/stats/packages/FreeSql.Repository?groupby=Version) |
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## 特性
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# 特性
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- [x] 支持 CodeFirst 迁移；
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- [x] 支持 DbFirst 从数据库导入实体类，支持三种模板生成器；
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@ -17,11 +17,14 @@ FreeSql 是一个功能强大的 .NETStandard 库，用于对象关系映射程
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- [x] 支持读写分离、分表分库，租户设计；
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- [x] 支持多种数据库，MySql/SqlServer/PostgreSQL/Oracle/Sqlite；
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[《Select查询数据文档》](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2) | [《Update更新数据文档》](https://github.com/2881099/FreeSql/wiki/%e4%bf%ae%e6%94%b9) | [《Insert插入数据文档》](https://github.com/2881099/FreeSql/wiki/%e6%b7%bb%e5%8a%a0) | [《Delete删除数据文档》](https://github.com/2881099/FreeSql/wiki/%e5%88%a0%e9%99%a4)
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| | |
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| - | - |
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| 入门 | [《Select》](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2) \| [《Update》](https://github.com/2881099/FreeSql/wiki/%e4%bf%ae%e6%94%b9) \| [《Insert》](https://github.com/2881099/FreeSql/wiki/%e6%b7%bb%e5%8a%a0) \| [《Delete》](https://github.com/2881099/FreeSql/wiki/%e5%88%a0%e9%99%a4) |
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| 新手 | [《表达式函数》](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0) \| [《CodeFirst》](https://github.com/2881099/FreeSql/wiki/CodeFirst) \| [《DbFirst》](https://github.com/2881099/FreeSql/wiki/DbFirst) |
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| 高手 | [《Repository》](https://github.com/2881099/FreeSql/wiki/Repository) \| [《UnitOfWork》](https://github.com/2881099/FreeSql/wiki/%e5%b7%a5%e4%bd%9c%e5%8d%95%e5%85%83) \| [《过滤器》](https://github.com/2881099/FreeSql/wiki/%e8%bf%87%e6%bb%a4%e5%99%a8) |
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| 不朽 | [《读写分离》](https://github.com/2881099/FreeSql/wiki/%e8%af%bb%e5%86%99%e5%88%86%e7%a6%bb) \| [《分区分表》](https://github.com/2881099/FreeSql/wiki/%e5%88%86%e5%8c%ba%e5%88%86%e8%a1%a8) \| [《租户》](https://github.com/2881099/FreeSql/wiki/%e7%a7%9f%e6%88%b7) \| [更新日志](https://github.com/2881099/FreeSql/wiki/%e6%9b%b4%e6%96%b0%e6%97%a5%e5%bf%97) |
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[《Expression 表达式函数文档》](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0) | [《CodeFirst 快速开发文档》](https://github.com/2881099/FreeSql/wiki/CodeFirst) | [《DbFirst 快速开发文档》](https://github.com/2881099/FreeSql/wiki/DbFirst) | [更新日志](https://github.com/2881099/FreeSql/wiki/%e6%9b%b4%e6%96%b0%e6%97%a5%e5%bf%97)
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## 快速开始
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# 快速开始
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```csharp
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var connstr = "Data Source=127.0.0.1;User ID=root;Password=root;" +
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"Initial Catalog=cccddd;Charset=utf8;SslMode=none;Max pool size=10";
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@ -67,46 +70,114 @@ FreeSql 使用模型执行数据访问，模型由实体类表示数据库表或
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或者手动创建模型，基于模型创建或修改数据库，提供 ICodeFirst 同步结构的 API（甚至可以做到开发阶段自动同步）。
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```csharp
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[Table(Name = "tb_topic")]
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class Topic {
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class Song {
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[Column(IsIdentity = true)]
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public int Id { get; set; }
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public int Clicks { get; set; }
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public DateTime? Create_time { get; set; }
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public bool? Is_deleted { get; set; }
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public string Title { get; set; }
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public DateTime CreateTime { get; set; }
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public string Url { get; set; }
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public int TypeId { get; set; }
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public TopicType Type { get; set; } //导航属性
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public virtual ICollection<Tag> Tags { get; set; }
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}
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class TopicType {
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class Song_tag {
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public int Song_id { get; set; }
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public virtual Song Song { get; set; }
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public int Tag_id { get; set; }
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public virtual Tag Tag { get; set; }
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}
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class Tag {
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[Column(IsIdentity = true)]
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public int Id { get; set; }
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public int? Parent_id { get; set; }
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public virtual Tag Parent { get; set; }
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public decimal? Ddd { get; set; }
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public string Name { get; set; }
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public int ClassId { get; set; }
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public TopicTypeClass Class { get; set; } //导航属性
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}
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class TopicTypeClass {
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public int Id { get; set; }
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public string Name { get; set; }
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public virtual ICollection<Song> Songs { get; set; }
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public virtual ICollection<Tag> Tags { get; set; }
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}
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```
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# Part1 查询
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# 查询
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```csharp
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List<Topic> t1 = fsql.Select<Topic>().Where(a => a.Id > 0).ToList();
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//OneToOne、ManyToOne
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var t0 = fsql.Select<Tag>().Where(a => a.Parent.Parent.Name == "粤语").ToSql();
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//SELECT a.`Id`, a.`Parent_id`, a__Parent.`Id` as3, a__Parent.`Parent_id` as4, a__Parent.`Ddd`, a__Parent.`Name`, a.`Ddd` as7, a.`Name` as8
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//FROM `Tag` a
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//LEFT JOIN `Tag` a__Parent ON a__Parent.`Id` = a.`Parent_id`
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//LEFT JOIN `Tag` a__Parent__Parent ON a__Parent__Parent.`Id` = a__Parent.`Parent_id`
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//WHERE (a__Parent__Parent.`Name` = '粤语')
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//OneToMany
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var t1 = fsql.Select<Tag>().Where(a => a.Tags.AsSelect().Any(t => t.Parent.Id == 10)).ToSql();
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//SELECT a.`Id`, a.`Parent_id`, a.`Ddd`, a.`Name`
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//FROM `Tag` a
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//WHERE (exists(SELECT 1
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// FROM `Tag` t
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// LEFT JOIN `Tag` t__Parent ON t__Parent.`Id` = t.`Parent_id`
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// WHERE (t__Parent.`Id` = 10) AND (t.`Parent_id` = a.`Id`)
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// limit 0,1))
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//ManyToMany
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var t2 = fsql.Select<Song>().Where(s => s.Tags.AsSelect().Any(t => t.Name == "国语")).ToSql();
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//SELECT a.`Id`, a.`Create_time`, a.`Is_deleted`, a.`Title`, a.`Url`
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//FROM `Song` a
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//WHERE(exists(SELECT 1
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// FROM `Song_tag` Mt_Ms
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// WHERE(Mt_Ms.`Song_id` = a.`Id`) AND(exists(SELECT 1
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// FROM `Tag` t
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// WHERE(t.`Name` = '国语') AND(t.`Id` = Mt_Ms.`Tag_id`)
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// limit 0, 1))
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// limit 0, 1))
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```
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更多前往wiki：[《Select查询数据文档》](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2)
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# 表达式函数
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```csharp
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var t1 = select.Where(a => new[] { 1, 2, 3 }.Contains(a.testFieldInt)).ToSql();
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//SELECT a.`Id`, a.`Clicks`, a.`TestTypeInfoGuid`, a.`Title`, a.`CreateTime`
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//FROM `Song` a
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//WHERE (a.`Id` in (1,2,3))
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```
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查找今天创建的数据
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```csharp
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var t2 = select.Where(a => a.CreateTime.Date == DateTime.Now.Date).ToSql();
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```
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SqlServer 下随机获取记录
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```csharp
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var t3 = select.OrderBy(a => Guid.NewGuid()).Limit(1).ToSql();
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//SELECT top 1 ...
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//FROM [Song] a
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//ORDER BY newid()
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```
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更多前往wiki：[《Expression 表达式函数文档》](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0)
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# 返回数据
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```csharp
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List<Song> t1 = fsql.Select<Song>().Where(a => a.Id > 0).ToList();
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//返回普通字段 + 导航对象 Type 的数据
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List<Topic> t2 = fsql.Select<Topic>().LeftJoin(a => a.Type.Id == a.TypeId).ToList();
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List<Song> t2 = fsql.Select<Song>().LeftJoin(a => a.Type.Id == a.TypeId).ToList();
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//返回一个字段
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List<int> t3 = fsql.Select<Topic>().Where(a => a.Id > 0).ToList(a => a.Id);
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List<int> t3 = fsql.Select<Song>().Where(a => a.Id > 0).ToList(a => a.Id);
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//返回匿名类型
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List<匿名类型> t4 = fsql.Select<Topic>().Where(a => a.Id > 0).ToList(a => new { a.Id, a.Title });
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List<匿名类型> t4 = fsql.Select<Song>().Where(a => a.Id > 0).ToList(a => new { a.Id, a.Title });
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//返回元组
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List<(int, string)> t5 = fsql.Select<Topic>().Where(a => a.Id > 0).ToList<(int, string)>("id, title");
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List<(int, string)> t5 = fsql.Select<Song>().Where(a => a.Id > 0).ToList<(int, string)>("id, title");
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//返回SQL字段
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List<匿名类> t4 = select.Where(a => a.Id > 0).Skip(100).Limit(200)
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@ -117,75 +188,18 @@ List<匿名类> t4 = select.Where(a => a.Id > 0).Skip(100).Limit(200)
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//奇思妙想：怎么查询开窗函数的结果
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});
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```
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### 联表之一：使用导航属性
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执行SQL返回数据
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```csharp
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sql = fsql.Select<Topic>()
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.LeftJoin(a => a.Type.Id == a.TypeId)
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.ToSql();
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sql = fsql.Select<Topic>()
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.LeftJoin(a => a.Type.Id == a.TypeId)
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.LeftJoin(a => a.Type.Class.Id == a.Type.ClassId)
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.ToSql();
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```
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### 联表之二：无导航属性
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```csharp
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sql = fsql.Select<Topic>()
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.LeftJoin<TopicType>((a, b) => b.Id == a.TypeId)
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.ToSql();
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sql = fsql.Select<Topic>()
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.LeftJoin<TopicType>((a, b) => b.Id == a.TypeId)
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.LeftJoin<TopicTypeClass>((a, c) => c.Id == a.Type.ClassId)
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.ToSql();
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```
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### 联表之三：b, c 条件怎么设？试试这种！
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```csharp
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sql = fsql.Select<Topic>()
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.From<TopicType, TopicTypeClass>((s, b, c) => s
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.LeftJoin(a => a.TypeId == b.Id)
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.LeftJoin(a => b.ClassId == c.Id))
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.ToSql();
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```
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### 联表之四：原生SQL联表
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```csharp
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sql = fsql.Select<Topic>()
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.LeftJoin("TopicType b on b.Id = a.TypeId and b.Name = ?bname", new { bname = "xxx" })
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.ToSql();
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```
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### 分组聚合
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```csharp
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var groupby = fsql.Select<Topic>()
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.GroupBy(a => new { tt2 = a.Title.Substring(0, 2), mod4 = a.Id % 4 })
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.Having(a => a.Count() > 0 && a.Avg(a.Key.mod4) > 0 && a.Max(a.Key.mod4) > 0)
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.Having(a => a.Count() < 300 || a.Avg(a.Key.mod4) < 100)
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.OrderBy(a => a.Key.tt2)
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.OrderByDescending(a => a.Count())
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.ToList(a => new { a.Key.tt2, cou1 = a.Count(), arg1 = a.Avg(a.Key.mod4) });
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//SELECT substr(a.`Title`, 1, 2) as1, count(1) as2, avg((a.`Id` % 4)) as3
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//FROM `xxx` a
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//GROUP BY substr(a.`Title`, 1, 2), (a.`Id` % 4)
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//HAVING (count(1) > 0 AND avg((a.`Id` % 4)) > 0 AND max((a.`Id` % 4)) > 0) AND (count(1) < 300 OR avg((a.`Id` % 4)) < 100)
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//ORDER BY substr(a.`Title`, 1, 2), count(1) DESC
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```
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### 执行SQL返回数据
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```csharp
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class xxx {
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public int Id { get; set; }
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public string Path { get; set; }
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public string Title2 { get; set; }
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}
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List<xxx> t6 = fsql.Ado.Query<xxx>("select * from song");
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List<(int, string ,string)> t7 = fsql.Ado.Query<(int, string, string)>("select * from song");
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List<Song> t6 = fsql.Ado.Query<Song>("select * from song");
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List<(int, string ,string)> t7 = fsql.Ado.Query<(int, string, string)>("select id,title,url from song");
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List<dynamic> t8 = fsql.Ado.Query<dynamic>("select * from song");
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```
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> 更多资料：[《Select查询数据》](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2)
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更多前往wiki：[《Select查询数据》](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2)
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## 性能测试
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### FreeSql Query & Dapper Query
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# 性能测试
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FreeSql Query & Dapper Query
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```shell
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Elapsed: 00:00:00.6733199; Query Entity Counts: 131072; ORM: Dapper
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Elapsed: 00:00:00.4554230; Query Tuple Counts: 131072; ORM: Dapper
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@ -199,148 +213,20 @@ Elapsed: 00:00:00.6060042; Query Tuple Counts: 131072; ORM: FreeSql*
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Elapsed: 00:00:00.4211323; Query ToList<Tuple> Counts: 131072; ORM: FreeSql*
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Elapsed: 00:00:01.0236285; Query Dynamic Counts: 131072; ORM: FreeSql*
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```
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### FreeSql ToList & Dapper Query
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FreeSql ToList & Dapper Query
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```shell
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Elapsed: 00:00:00.6707125; ToList Entity Counts: 131072; ORM: FreeSql*
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Elapsed: 00:00:00.6495301; Query Entity Counts: 131072; ORM: Dapper
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```
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[查看测试代码](FreeSql.Tests.PerformanceTests/MySqlAdoTest.cs)
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> 测试方法：运行两次，以第二次性能报告，避免了首个运行慢不公平的情况。
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测试方法：运行两次，以第二次性能报告，避免了首个运行慢不公平的情况。[查看测试代码](FreeSql.Tests.PerformanceTests/MySqlAdoTest.cs)
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FreeSql 目前使用的ExpressionTree+缓存，因为支持更为复杂的数据类型，所以比 Dapper Emit 慢少许。
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# Part2 添加
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```csharp
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var items = new List<Topic>();
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for (var a = 0; a < 10; a++)
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items.Add(new Topic { Title = $"newtitle{a}", Clicks = a * 100 });
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var t1 = fsql.Insert<Topic>().AppendData(items.First()).ToSql();
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//批量插入
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var t2 = fsql.Insert<Topic>().AppendData(items).ToSql();
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//插入指定的列
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var t3 = fsql.Insert<Topic>().AppendData(items)
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.InsertColumns(a => a.Title).ToSql();
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var t4 = fsql.Insert<Topic>().AppendData(items)
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.InsertColumns(a => new { a.Title, a.Clicks }).ToSql();
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//忽略列
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var t5 = fsql.Insert<Topic>().AppendData(items)
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.IgnoreColumns(a => a.CreateTime).ToSql();
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var t6 = fsql.Insert<Topic>().AppendData(items)
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.IgnoreColumns(a => new { a.Title, a.CreateTime }).ToSql();
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```
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### 执行命令
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| 方法 | 返回值 | 描述 |
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| - | - | - |
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| ExecuteAffrows | long | 执行SQL语句，返回影响的行数 |
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| ExecuteIdentity | long | 执行SQL语句，返回自增值 |
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| ExecuteInserted | List\<Topic\> | 执行SQL语句，返回插入后的记录 |
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> 更多资料：[《Insert添加数据》](https://github.com/2881099/FreeSql/wiki/%e6%b7%bb%e5%8a%a0)
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# Part3 修改
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```csharp
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var t1 = fsql.Update<Topic>(1).Set(a => a.CreateTime, DateTime.Now).ToSql();
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//UPDATE `tb_topic` SET `CreateTime` = '2018-12-08 00:04:59' WHERE (`Id` = 1)
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//更新指定列，累加
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var t2 = fsql.Update<Topic>(1).Set(a => a.Clicks + 1).ToSql();
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//UPDATE `tb_topic` SET `Clicks` = ifnull(`Clicks`,0) + 1 WHERE (`Id` = 1)
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//保存实体
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var item = new Topic { Id = 1, Title = "newtitle" };
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var t3 = fsql.Update<Topic>().SetSource(item).ToSql();
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//UPDATE `tb_topic` SET `Clicks` = ?p_0, `Title` = ?p_1, `CreateTime` = ?p_2 WHERE (`Id` = 1)
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//忽略列
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var t4 = fsql.Update<Topic>().SetSource(item)
|
||||
.IgnoreColumns(a => a.Clicks).ToSql();
|
||||
//UPDATE `tb_topic` SET `Title` = ?p_0, `CreateTime` = ?p_1 WHERE (`Id` = 1)
|
||||
|
||||
var t5 = fsql.Update<Topic>().SetSource(item)
|
||||
.IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ToSql();
|
||||
//UPDATE `tb_topic` SET `Title` = ?p_0 WHERE (`Id` = 1)
|
||||
|
||||
//批量保存
|
||||
```csharp
|
||||
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 });
|
||||
|
||||
var t6 = fsql.Update<Topic>().SetSource(items).ToSql();
|
||||
//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))
|
||||
|
||||
//批量保存的时候，也可以忽略一些列
|
||||
var t7 = fsql.Update<Topic>().SetSource(items)
|
||||
.IgnoreColumns(a => new { a.Clicks, a.CreateTime }).ToSql();
|
||||
//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))
|
||||
|
||||
//批量更新指定列
|
||||
var t8 = fsql.Update<Topic>().SetSource(items).Set(a => a.CreateTime, DateTime.Now).ToSql();
|
||||
//UPDATE `tb_topic` SET `CreateTime` = ?p_0 WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))
|
||||
```
|
||||
### 更新条件
|
||||
```csharp
|
||||
fsql.Update<Topic>(object dywhere)
|
||||
```
|
||||
dywhere 支持
|
||||
* 主键值
|
||||
* new[] { 主键值1, 主键值2 }
|
||||
* Topic对象
|
||||
* new[] { Topic对象1, Topic对象2 }
|
||||
* new { id = 1 }
|
||||
```csharp
|
||||
var t9 = fsql.Update<Topic>().Set(a => a.Title, "新标题").Where(a => a.Id == 1).ToSql();
|
||||
//UPDATE `tb_topic` SET `Title` = '新标题' WHERE (Id = 1)
|
||||
```
|
||||
### 自定义SQL
|
||||
```csharp
|
||||
var t10 = fsql.Update<Topic>().SetRaw("Title = {0}", "新标题").Where("Id = {0}", 1).ToSql();
|
||||
//UPDATE `tb_topic` SET Title = '新标题' WHERE (Id = 1)
|
||||
//sql语法条件，参数使用 {0}，与 string.Format 保持一致，无须加单引号，错误的用法：'{0}'
|
||||
```
|
||||
### 执行命令
|
||||
| 方法 | 返回值 | 参数 | 描述 |
|
||||
| - | - | - | - |
|
||||
| ExecuteAffrows | long | | 执行SQL语句，返回影响的行数 |
|
||||
| ExecuteUpdated | List\<T1\> | | 执行SQL语句，返回更新后的记录 |
|
||||
> 更多资料：[《Update更新数据》](https://github.com/2881099/FreeSql/wiki/%e4%bf%ae%e6%94%b9)
|
||||
|
||||
# Part4 删除
|
||||
详情查看：[《Delete 删除数据》](https://github.com/2881099/FreeSql/wiki/%e5%88%a0%e9%99%a4)
|
||||
|
||||
# Part5 表达式函数
|
||||
详情查看：[《Expression 表达式函数》](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0)
|
||||
|
||||
# Part6 事务
|
||||
|
||||
```csharp
|
||||
fsql.Transaction(() => {
|
||||
//code
|
||||
});
|
||||
```
|
||||
|
||||
没异常就提交，有异常会回滚。
|
||||
|
||||
代码体内只可以使用同步方法，因为事务对象挂靠在线程关联上，使用异步方法会切换线程。
|
||||
|
||||
## 贡献者名单
|
||||
# 贡献者名单
|
||||
|
||||
[systemhejiyong](https://github.com/systemhejiyong)
|
||||
[LambertW](https://github.com/LambertW)
|
||||
|
||||
Reference in New Issue
Block a user