- 增加 SqlServer ISelect.WithLock 扩展方法，实现 with(nolock) 查询；

- 增加 SqlServer IFreeSql.SetGlobalSelectWithLock 扩展方法，实现全局设置 with(nock) 查询； - 移除 Aop.ToList； - 移除 Aop.Where；
2025-06-18 20:08:15 +08:00 · 2019-11-06 13:58:19 +08:00
parent 9516131383
commit 0c341360b7
25 changed files with 228 additions and 236 deletions
--- a/Providers/FreeSql.Provider.SqlServer/Curd/SqlServerSelect.cs
+++ b/Providers/FreeSql.Provider.SqlServer/Curd/SqlServerSelect.cs
@ -12,13 +12,13 @@ namespace FreeSql.SqlServer.Curd
    class SqlServerSelect<T1> : FreeSql.Internal.CommonProvider.Select1Provider<T1> where T1 : class
    {

-        internal static string ToSqlStatic(CommonUtils _commonUtils, CommonExpression _commonExpression, string _select, bool _distinct, string field, StringBuilder _join, StringBuilder _where, string _groupby, string _having, string _orderby, int _skip, int _limit, List<SelectTableInfo> _tables, List<Dictionary<Type, string>> tbUnions, List<LambdaExpression> _whereCascadeExpression, IFreeSql _orm)
+        internal static string ToSqlStatic(CommonUtils _commonUtils, CommonExpression _commonExpression, string _select, bool _distinct, string field, StringBuilder _join, StringBuilder _where, string _groupby, string _having, string _orderby, int _skip, int _limit, List<SelectTableInfo> _tables, List<Dictionary<Type, string>> tbUnions, Func<Type, string, string> _aliasRule, List<LambdaExpression> _whereCascadeExpression, IFreeSql _orm)
            => (_commonUtils as SqlServerUtils).IsSelectRowNumber ?
-            ToSqlStaticRowNumber(_commonUtils, _commonExpression, _select, _distinct, field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, tbUnions, _whereCascadeExpression, _orm) :
-            ToSqlStaticOffsetFetchNext(_commonUtils, _commonExpression, _select, _distinct, field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, tbUnions, _whereCascadeExpression, _orm);
+            ToSqlStaticRowNumber(_commonUtils, _commonExpression, _select, _distinct, field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, tbUnions, _aliasRule, _whereCascadeExpression, _orm) :
+            ToSqlStaticOffsetFetchNext(_commonUtils, _commonExpression, _select, _distinct, field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, tbUnions, _aliasRule, _whereCascadeExpression, _orm);

        #region SqlServer 2005 row_number
-        internal static string ToSqlStaticRowNumber(CommonUtils _commonUtils, CommonExpression _commonExpression, string _select, bool _distinct, string field, StringBuilder _join, StringBuilder _where, string _groupby, string _having, string _orderby, int _skip, int _limit, List<SelectTableInfo> _tables, List<Dictionary<Type, string>> tbUnions, List<LambdaExpression> _whereCascadeExpression, IFreeSql _orm)
+        internal static string ToSqlStaticRowNumber(CommonUtils _commonUtils, CommonExpression _commonExpression, string _select, bool _distinct, string field, StringBuilder _join, StringBuilder _where, string _groupby, string _having, string _orderby, int _skip, int _limit, List<SelectTableInfo> _tables, List<Dictionary<Type, string>> tbUnions, Func<Type, string, string> _aliasRule, List<LambdaExpression> _whereCascadeExpression, IFreeSql _orm)
        {
            if (_orm.CodeFirst.IsAutoSyncStructure)
                _orm.CodeFirst.SyncStructure(_tables.Select(a => a.Table.Type).ToArray());
@ -55,13 +55,13 @@ namespace FreeSql.SqlServer.Curd
                var tbsfrom = _tables.Where(a => a.Type == SelectTableInfoType.From).ToArray();
                for (var a = 0; a < tbsfrom.Length; a++)
                {
-                    sb.Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[a].Table.Type])).Append(" ").Append(tbsfrom[a].Alias);
+                    sb.Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[a].Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tbsfrom[a].Table.Type, tbsfrom[a].Alias) ?? tbsfrom[a].Alias);
                    if (tbsjoin.Length > 0)
                    {
                        //如果存在 join 查询，则处理 from t1, t2 改为 from t1 inner join t2 on 1 = 1
                        for (var b = 1; b < tbsfrom.Length; b++)
                        {
-                            sb.Append(" \r\nLEFT JOIN ").Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[b].Table.Type])).Append(" ").Append(tbsfrom[b].Alias);
+                            sb.Append(" \r\nLEFT JOIN ").Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[b].Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tbsfrom[b].Table.Type, tbsfrom[b].Alias) ?? tbsfrom[b].Alias);

                            if (string.IsNullOrEmpty(tbsfrom[b].NavigateCondition) && string.IsNullOrEmpty(tbsfrom[b].On) && string.IsNullOrEmpty(tbsfrom[b].Cascade)) sb.Append(" ON 1 = 1");
                            else
@ -95,7 +95,7 @@ namespace FreeSql.SqlServer.Curd
                            sb.Append(" \r\nRIGHT JOIN ");
                            break;
                    }
-                    sb.Append(_commonUtils.QuoteSqlName(tbUnion[tb.Table.Type])).Append(" ").Append(tb.Alias).Append(" ON ").Append(tb.On ?? tb.NavigateCondition);
+                    sb.Append(_commonUtils.QuoteSqlName(tbUnion[tb.Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tb.Table.Type, tb.Alias) ?? tb.Alias).Append(" ON ").Append(tb.On ?? tb.NavigateCondition);
                    if (!string.IsNullOrEmpty(tb.Cascade)) sb.Append(" AND (").Append(tb.Cascade).Append(")");
                    if (!string.IsNullOrEmpty(tb.On) && !string.IsNullOrEmpty(tb.NavigateCondition)) sbnav.Append(" AND (").Append(tb.NavigateCondition).Append(")");
                }
@ -128,7 +128,7 @@ namespace FreeSql.SqlServer.Curd
        #endregion

        #region SqlServer 2012+ offset feach next
-        internal static string ToSqlStaticOffsetFetchNext(CommonUtils _commonUtils, CommonExpression _commonExpression, string _select, bool _distinct, string field, StringBuilder _join, StringBuilder _where, string _groupby, string _having, string _orderby, int _skip, int _limit, List<SelectTableInfo> _tables, List<Dictionary<Type, string>> tbUnions, List<LambdaExpression> _whereCascadeExpression, IFreeSql _orm)
+        internal static string ToSqlStaticOffsetFetchNext(CommonUtils _commonUtils, CommonExpression _commonExpression, string _select, bool _distinct, string field, StringBuilder _join, StringBuilder _where, string _groupby, string _having, string _orderby, int _skip, int _limit, List<SelectTableInfo> _tables, List<Dictionary<Type, string>> tbUnions, Func<Type, string, string> _aliasRule, List<LambdaExpression> _whereCascadeExpression, IFreeSql _orm)
        {
            if (_orm.CodeFirst.IsAutoSyncStructure)
                _orm.CodeFirst.SyncStructure(_tables.Select(a => a.Table.Type).ToArray());
@ -155,13 +155,13 @@ namespace FreeSql.SqlServer.Curd
                var tbsfrom = _tables.Where(a => a.Type == SelectTableInfoType.From).ToArray();
                for (var a = 0; a < tbsfrom.Length; a++)
                {
-                    sb.Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[a].Table.Type])).Append(" ").Append(tbsfrom[a].Alias);
+                    sb.Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[a].Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tbsfrom[a].Table.Type, tbsfrom[a].Alias) ?? tbsfrom[a].Alias);
                    if (tbsjoin.Length > 0)
                    {
                        //如果存在 join 查询，则处理 from t1, t2 改为 from t1 inner join t2 on 1 = 1
                        for (var b = 1; b < tbsfrom.Length; b++)
                        {
-                            sb.Append(" \r\nLEFT JOIN ").Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[b].Table.Type])).Append(" ").Append(tbsfrom[b].Alias);
+                            sb.Append(" \r\nLEFT JOIN ").Append(_commonUtils.QuoteSqlName(tbUnion[tbsfrom[b].Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tbsfrom[b].Table.Type, tbsfrom[b].Alias) ?? tbsfrom[b].Alias);

                            if (string.IsNullOrEmpty(tbsfrom[b].NavigateCondition) && string.IsNullOrEmpty(tbsfrom[b].On) && string.IsNullOrEmpty(tbsfrom[b].Cascade)) sb.Append(" ON 1 = 1");
                            else
@ -195,7 +195,7 @@ namespace FreeSql.SqlServer.Curd
                            sb.Append(" \r\nRIGHT JOIN ");
                            break;
                    }
-                    sb.Append(_commonUtils.QuoteSqlName(tbUnion[tb.Table.Type])).Append(" ").Append(tb.Alias).Append(" ON ").Append(tb.On ?? tb.NavigateCondition);
+                    sb.Append(_commonUtils.QuoteSqlName(tbUnion[tb.Table.Type])).Append(" ").Append(_aliasRule?.Invoke(tb.Table.Type, tb.Alias) ?? tb.Alias).Append(" ON ").Append(tb.On ?? tb.NavigateCondition);
                    if (!string.IsNullOrEmpty(tb.Cascade)) sb.Append(" AND (").Append(tb.Cascade).Append(")");
                    if (!string.IsNullOrEmpty(tb.On) && !string.IsNullOrEmpty(tb.NavigateCondition)) sbnav.Append(" AND (").Append(tb.NavigateCondition).Append(")");
                }
@ -238,7 +238,10 @@ namespace FreeSql.SqlServer.Curd
        }
        #endregion

-        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
+        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) {
+            if (FreeSqlSqlServerGlobalExtensions._dicSetGlobalSelectWithLock.TryGetValue(orm, out var tryval))
+                this.WithLock(tryval.Item1, tryval.Item2);
+        }
        public override ISelect<T1, T2> From<T2>(Expression<Func<ISelectFromExpression<T1>, T2, ISelectFromExpression<T1>>> exp) { this.InternalFrom(exp); var ret = new SqlServerSelect<T1, T2>(_orm, _commonUtils, _commonExpression, null); SqlServerSelect<T1>.CopyData(this, ret, exp?.Parameters); return ret; }
        public override ISelect<T1, T2, T3> From<T2, T3>(Expression<Func<ISelectFromExpression<T1>, T2, T3, ISelectFromExpression<T1>>> exp) { this.InternalFrom(exp); var ret = new SqlServerSelect<T1, T2, T3>(_orm, _commonUtils, _commonExpression, null); SqlServerSelect<T1>.CopyData(this, ret, exp?.Parameters); return ret; }
        public override ISelect<T1, T2, T3, T4> From<T2, T3, T4>(Expression<Func<ISelectFromExpression<T1>, T2, T3, T4, ISelectFromExpression<T1>>> exp) { this.InternalFrom(exp); var ret = new SqlServerSelect<T1, T2, T3, T4>(_orm, _commonUtils, _commonExpression, null); SqlServerSelect<T1>.CopyData(this, ret, exp?.Parameters); return ret; }
@ -248,51 +251,51 @@ namespace FreeSql.SqlServer.Curd
        public override ISelect<T1, T2, T3, T4, T5, T6, T7, T8> From<T2, T3, T4, T5, T6, T7, T8>(Expression<Func<ISelectFromExpression<T1>, T2, T3, T4, T5, T6, T7, T8, ISelectFromExpression<T1>>> exp) { this.InternalFrom(exp); var ret = new SqlServerSelect<T1, T2, T3, T4, T5, T6, T7, T8>(_orm, _commonUtils, _commonExpression, null); SqlServerSelect<T1>.CopyData(this, ret, exp?.Parameters); return ret; }
        public override ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> From<T2, T3, T4, T5, T6, T7, T8, T9>(Expression<Func<ISelectFromExpression<T1>, T2, T3, T4, T5, T6, T7, T8, T9, ISelectFromExpression<T1>>> exp) { this.InternalFrom(exp); var ret = new SqlServerSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>(_orm, _commonUtils, _commonExpression, null); SqlServerSelect<T1>.CopyData(this, ret, exp?.Parameters); return ret; }
        public override ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> From<T2, T3, T4, T5, T6, T7, T8, T9, T10>(Expression<Func<ISelectFromExpression<T1>, T2, T3, T4, T5, T6, T7, T8, T9, T10, ISelectFromExpression<T1>>> exp) { this.InternalFrom(exp); var ret = new SqlServerSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(_orm, _commonUtils, _commonExpression, null); SqlServerSelect<T1>.CopyData(this, ret, exp?.Parameters); return ret; }
-        public override string ToSql(string field = null) => ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2> : FreeSql.Internal.CommonProvider.Select2Provider<T1, T2> where T1 : class where T2 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2, T3> : FreeSql.Internal.CommonProvider.Select3Provider<T1, T2, T3> where T1 : class where T2 : class where T3 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2, T3, T4> : FreeSql.Internal.CommonProvider.Select4Provider<T1, T2, T3, T4> where T1 : class where T2 : class where T3 : class where T4 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2, T3, T4, T5> : FreeSql.Internal.CommonProvider.Select5Provider<T1, T2, T3, T4, T5> where T1 : class where T2 : class where T3 : class where T4 : class where T5 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2, T3, T4, T5, T6> : FreeSql.Internal.CommonProvider.Select6Provider<T1, T2, T3, T4, T5, T6> where T1 : class where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2, T3, T4, T5, T6, T7> : FreeSql.Internal.CommonProvider.Select7Provider<T1, T2, T3, T4, T5, T6, T7> where T1 : class where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2, T3, T4, T5, T6, T7, T8> : FreeSql.Internal.CommonProvider.Select8Provider<T1, T2, T3, T4, T5, T6, T7, T8> where T1 : class where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> : FreeSql.Internal.CommonProvider.Select9Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9> where T1 : class where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
    class SqlServerSelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> : FreeSql.Internal.CommonProvider.Select10Provider<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> where T1 : class where T2 : class where T3 : class where T4 : class where T5 : class where T6 : class where T7 : class where T8 : class where T9 : class where T10 : class
    {
        public SqlServerSelect(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere) : base(orm, commonUtils, commonExpression, dywhere) { }
-        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _whereCascadeExpression, _orm);
+        public override string ToSql(string field = null) => SqlServerSelect<T1>.ToSqlStatic(_commonUtils, _commonExpression, _select, _distinct, field ?? this.GetAllFieldExpressionTreeLevel2().Field, _join, _where, _groupby, _having, _orderby, _skip, _limit, _tables, this.GetTableRuleUnions(), _aliasRule, _whereCascadeExpression, _orm);
    }
 }
--- a/Providers/FreeSql.Provider.SqlServer/SqlServerExtensions.cs
+++ b/Providers/FreeSql.Provider.SqlServer/SqlServerExtensions.cs
@ -1,4 +1,9 @@
-public static partial class FreeSqlGlobalExtensions
+using FreeSql;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+
+public static partial class FreeSqlSqlServerGlobalExtensions
 {

    /// <summary>
@ -9,4 +14,35 @@
    /// <returns></returns>
    public static string FormatSqlServer(this string that, params object[] args) => _sqlserverAdo.Addslashes(that, args);
    static FreeSql.SqlServer.SqlServerAdo _sqlserverAdo = new FreeSql.SqlServer.SqlServerAdo();
+
+    /// <summary>
+    /// SqlServer with(nolock) 查询
+    /// </summary>
+    /// <typeparam name="T"></typeparam>
+    /// <param name="that"></param>
+    /// <param name="lockType"></param>
+    /// <param name="rule">多表查询时的锁规则</param>
+    /// <returns></returns>
+    public static ISelect<T> WithLock<T>(this ISelect<T> that, SqlServerLock lockType = SqlServerLock.NoLock, Dictionary<Type, bool> rule = null) where T : class 
+        => rule == null ? 
+        that.AsAlias((type, old) => $"{old} with({lockType.ToString()})") :
+        that.AsAlias((type, old) => rule.TryGetValue(type, out var trybool) && trybool ? $"{old} with({lockType.ToString()})" : old);
+
+    /// <summary>
+    /// 设置全局 SqlServer with(nolock) 查询
+    /// </summary>
+    /// <param name="that"></param>
+    /// <param name="options"></param>
+    public static IFreeSql SetGlobalSelectWithLock(this IFreeSql that, SqlServerLock lockType, Dictionary<Type, bool> rule)
+    {
+        var value = (lockType, rule);
+        _dicSetGlobalSelectWithLock.AddOrUpdate(that, value, (_, __) => value);
+        return that;
+    }
+    internal static ConcurrentDictionary<IFreeSql, (SqlServerLock, Dictionary<Type, bool>)> _dicSetGlobalSelectWithLock = new ConcurrentDictionary<IFreeSql, (SqlServerLock, Dictionary<Type, bool>)>();
 }
+
+public enum SqlServerLock
+{
+    HoldLock, NoLock, PagLock, ReadCommitted, ReadPast, ReadUnCommitted, RepeaTableRead, RowLock, Serializable, TabLock, TabLockX, UpdLock, XLock
+}