diff --git a/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs b/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
index 351dda5e0..d127a26de 100644
--- a/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
+++ b/FreeSql.Tests/FreeSql.Tests/UnitTest1.cs
@@ -341,7 +341,10 @@ namespace FreeSql.Tests
         [Fact]
         public void Test1()
         {
-            var kfkfjdfg = g.oracle.Select<Templates>().Where(a => (DateTime.Now - a.EditTime).TotalMinutes > 100).ToSql();
+            g.oracle.Select<Templates, TaskBuild>()
+                .InnerJoin((a,b) => true)
+                .Where((a,b) => (DateTime.Now - a.EditTime).TotalMinutes > 100)
+                .ToSql();
             
 
             g.oracle.Aop.SyncStructureAfter += (s, e) => 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect10.cs b/FreeSql/Interface/Curd/ISelect/ISelect10.cs
index 15a8f4dd9..11cb5e76a 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect10.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect10.cs
@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp);
 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect2.cs b/FreeSql/Interface/Curd/ISelect/ISelect2.cs
index c13f1b71d..0b6c271b8 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect2.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect2.cs
@@ -34,6 +34,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, TMember>> column);
 
+        ISelect<T1, T2> LeftJoin(Expression<Func<T1, T2, bool>> exp);
+        ISelect<T1, T2> InnerJoin(Expression<Func<T1, T2, bool>> exp);
+        ISelect<T1, T2> RightJoin(Expression<Func<T1, T2, bool>> exp);
+
         ISelect<T1, T2> Where(Expression<Func<T1, T2, bool>> exp);
         ISelect<T1, T2> WhereIf(bool condition, Expression<Func<T1, T2, bool>> exp);
 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect3.cs b/FreeSql/Interface/Curd/ISelect/ISelect3.cs
index 0d036dd60..e890ca75b 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect3.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect3.cs
@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, TMember>> column);
 
+        ISelect<T1, T2, T3> LeftJoin(Expression<Func<T1, T2, T3, bool>> exp);
+        ISelect<T1, T2, T3> InnerJoin(Expression<Func<T1, T2, T3, bool>> exp);
+        ISelect<T1, T2, T3> RightJoin(Expression<Func<T1, T2, T3, bool>> exp);
+
         ISelect<T1, T2, T3> Where(Expression<Func<T1, T2, T3, bool>> exp);
         ISelect<T1, T2, T3> WhereIf(bool condition, Expression<Func<T1, T2, T3, bool>> exp);
 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect4.cs b/FreeSql/Interface/Curd/ISelect/ISelect4.cs
index 7787cf39f..da0a140e7 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect4.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect4.cs
@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, TMember>> column);
 
+        ISelect<T1, T2, T3, T4> LeftJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
+        ISelect<T1, T2, T3, T4> InnerJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
+        ISelect<T1, T2, T3, T4> RightJoin(Expression<Func<T1, T2, T3, T4, bool>> exp);
+
         ISelect<T1, T2, T3, T4> Where(Expression<Func<T1, T2, T3, T4, bool>> exp);
         ISelect<T1, T2, T3, T4> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, bool>> exp);
 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect5.cs b/FreeSql/Interface/Curd/ISelect/ISelect5.cs
index c579b50ae..28198dd02 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect5.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect5.cs
@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5> RightJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5> Where(Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
         ISelect<T1, T2, T3, T4, T5> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, bool>> exp);
 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect6.cs b/FreeSql/Interface/Curd/ISelect/ISelect6.cs
index 05e42d96e..01a2b3ed4 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect6.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect6.cs
@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6> Where(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp);
 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect7.cs b/FreeSql/Interface/Curd/ISelect/ISelect7.cs
index 25356edb3..ca2f6a822 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect7.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect7.cs
@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6, T7> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6, T7> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp);
 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect8.cs b/FreeSql/Interface/Curd/ISelect/ISelect8.cs
index 1404be93c..c77040b1e 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect8.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect8.cs
@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp);
 
diff --git a/FreeSql/Interface/Curd/ISelect/ISelect9.cs b/FreeSql/Interface/Curd/ISelect/ISelect9.cs
index b6ed09ba4..feba4958f 100644
--- a/FreeSql/Interface/Curd/ISelect/ISelect9.cs
+++ b/FreeSql/Interface/Curd/ISelect/ISelect9.cs
@@ -33,6 +33,10 @@ namespace FreeSql
         TMember Avg<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);
         Task<TMember> AvgAsync<TMember>(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, TMember>> column);
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> WhereIf(bool condition, Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp);
 
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs
index a73fea3a2..8aec418b4 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select10Provider.cs
@@ -177,6 +177,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> exp)
         {
             if (exp == null) return this.Where(null);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs
index 25a82a0cb..552f76601 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select2Provider.cs
@@ -153,6 +153,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2> ISelect<T1, T2>.LeftJoin(Expression<Func<T1, T2, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2> ISelect<T1, T2>.InnerJoin(Expression<Func<T1, T2, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2> ISelect<T1, T2>.RightJoin(Expression<Func<T1, T2, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2> ISelect<T1, T2>.Where(Expression<Func<T1, T2, bool>> exp)
         {
             if (exp == null) return this.Where(null);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs
index 82a0f6a54..cd80bc194 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select3Provider.cs
@@ -156,6 +156,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3> ISelect<T1, T2, T3>.LeftJoin(Expression<Func<T1, T2, T3, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3> ISelect<T1, T2, T3>.InnerJoin(Expression<Func<T1, T2, T3, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3> ISelect<T1, T2, T3>.RightJoin(Expression<Func<T1, T2, T3, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3> ISelect<T1, T2, T3>.Where(Expression<Func<T1, T2, T3, bool>> exp)
         {
             if (exp == null) return this.Where(null);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs
index 1efcdb3cf..707080a64 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select4Provider.cs
@@ -159,6 +159,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.LeftJoin(Expression<Func<T1, T2, T3, T4, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.InnerJoin(Expression<Func<T1, T2, T3, T4, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.RightJoin(Expression<Func<T1, T2, T3, T4, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4> ISelect<T1, T2, T3, T4>.Where(Expression<Func<T1, T2, T3, T4, bool>> exp)
         {
             if (exp == null) return this.Where(null);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs
index ef30f98ae..60a3c5e6c 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select5Provider.cs
@@ -162,6 +162,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5> ISelect<T1, T2, T3, T4, T5>.Where(Expression<Func<T1, T2, T3, T4, T5, bool>> exp)
         {
             if (exp == null) return this.Where(null);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs
index 0572ee69a..ee59440c6 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select6Provider.cs
@@ -165,6 +165,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6> ISelect<T1, T2, T3, T4, T5, T6>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, bool>> exp)
         {
             if (exp == null) return this.Where(null);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs
index c0b9161e1..2118ee361 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select7Provider.cs
@@ -168,6 +168,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6, T7> ISelect<T1, T2, T3, T4, T5, T6, T7>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, bool>> exp)
         {
             if (exp == null) return this.Where(null);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs
index a5bf2c744..cc611d621 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select8Provider.cs
@@ -171,6 +171,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8> ISelect<T1, T2, T3, T4, T5, T6, T7, T8>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, bool>> exp)
         {
             if (exp == null) return this.Where(null);
diff --git a/FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs b/FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs
index da94f75a4..3c3a8c1d8 100644
--- a/FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs
+++ b/FreeSql/Internal/CommonProvider/SelectProvider/Select9Provider.cs
@@ -174,6 +174,27 @@ namespace FreeSql.Internal.CommonProvider
             return this.InternalToSql<TReturn>(select?.Body);
         }
 
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.LeftJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.InnerJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.InnerJoin);
+        }
+
+        ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.RightJoin(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp)
+        {
+            if (exp == null) return this.InternalJoin(exp?.Body, SelectTableInfoType.LeftJoin);
+            for (var a = 0; a < exp.Parameters.Count; a++) _tables[a].Parameter = exp.Parameters[a];
+            return this.InternalJoin(exp?.Body, SelectTableInfoType.RightJoin);
+        }
+
         ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9> ISelect<T1, T2, T3, T4, T5, T6, T7, T8, T9>.Where(Expression<Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, bool>> exp)
         {
             if (exp == null) return this.Where(null);