diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
index 4f5b47c10..135c41c36 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
@@ -389,7 +389,7 @@ namespace SqlSugar
             var navEntity = args[0];
             var navEntityInfo = this.Context.EntityMaintenance.GetEntityInfo(navEntity);
             var sqlObj = GetWhereSql(navObjectNameColumnInfo.Navigat.Name);
-            Check.ExceptionEasy(sqlObj.MappingExpressions.IsNullOrEmpty(), $"Dynamic need MappingField ,Demo: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())", $"自定义映射需要 MappingFields ,例子: Includes(it => it.Books.MappingFields(z=>z.studenId,()=>it.StudentId).ToList())");
+            Check.ExceptionEasy(sqlObj.MappingExpressions.IsNullOrEmpty(), $"Dynamic need MappingField ,Demo: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())", $"自定义映射需要 MappingField ,例子: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())");
             if (list.Any() && navObjectNamePropety.GetValue(list.First()) == null)
             {
                 MappingFieldsHelper<T> helper = new MappingFieldsHelper<T>();
@@ -565,7 +565,7 @@ namespace SqlSugar
         private void CheckHasRootShortName(Expression rootExpression, Expression childExpression)
         {
             var rootShortName = GetShortName(rootExpression);
-            if (rootShortName.HasValue()&& childExpression.ToString().Contains($"{rootShortName}."))
+            if (rootShortName.HasValue()&& childExpression.ToString().Contains($" {rootShortName}."))
             {
                 Check.ExceptionEasy($".Where({childExpression}) no support {rootShortName}.Field, Use .MappingField",$".Where({childExpression})禁止出{rootShortName}.字段 , 你可以使用.MappingField(z=>z.字段,()=>{rootShortName}.字段) 与主表字段进行过滤");
             }
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index 43d153917..f7a6e6864 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -106,6 +106,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression,JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2> FullJoin<T2>(Expression<Func<T, T2, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T2>();
+            var result = InstanceFactory.GetQueryable<T, T2>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2> RightJoin<T2>(Expression<Func<T, T2, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T2>();
@@ -3408,6 +3417,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3> FullJoin<T3>(Expression<Func<T, T2, T3, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T3>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3> RightJoin<T3>(Expression<Func<T, T2, T3, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T3>();
@@ -3837,6 +3855,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4> FullJoin<T4>(Expression<Func<T, T2, T3, T4, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T4>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4> RightJoin<T4>(Expression<Func<T, T2, T3, T4, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T4>();
@@ -4348,6 +4375,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5> FullJoin<T5>(Expression<Func<T, T2, T3, T4, T5, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T5>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4, T5>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5> RightJoin<T5>(Expression<Func<T, T2, T3, T4, T5, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T5>();
@@ -4912,6 +4948,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6> FullJoin<T6>(Expression<Func<T, T2, T3, T4, T5, T6, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T6>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4, T5, T6>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6> RightJoin<T6>(Expression<Func<T, T2, T3, T4, T5, T6, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T6>();
@@ -5056,6 +5101,31 @@ namespace SqlSugar
         #endregion
 
         #region OrderBy
+        public new virtual ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, T2, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, T2, T3, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, T2, T3, T4, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4,T5> OrderByDescending(Expression<Func<T, T2, T3, T4, T5, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
         public new ISugarQueryable<T, T2, T3, T4,T5> OrderBy(string orderFileds)
         {
             base.OrderBy(orderFileds);
@@ -5424,6 +5494,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7> FullJoin<T7>(Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T7>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4, T5, T6, T7>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7> RightJoin<T7>(Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T7>();
@@ -5581,6 +5660,37 @@ namespace SqlSugar
         #endregion
 
         #region OrderBy
+        public new virtual ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, T3, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, T3, T4, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, T3, T4, T5, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+        public virtual ISugarQueryable<T, T2, T3, T4, T5,T6> OrderByDescending(Expression<Func<T, T2, T3, T4, T5, T6, object>> expression)
+        {
+            this._OrderBy(expression, OrderByType.Desc);
+            return this;
+        }
+
         public new ISugarQueryable<T, T2, T3, T4, T5,T6> OrderBy(string orderFileds)
         {
             base.OrderBy(orderFileds);
@@ -5976,6 +6086,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> FullJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T8>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4, T5, T6, T7, T8>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> RightJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T8>();
@@ -6524,6 +6643,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> FullJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T9>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> RightJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T9>();
@@ -7063,6 +7191,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> FullJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T10>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> RightJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T10>();
@@ -7599,6 +7736,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> FullJoin<T11>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T11>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> RightJoin<T11>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T11>();
@@ -8166,6 +8312,15 @@ namespace SqlSugar
             result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Left));
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> FullJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression)
+        {
+            this.Context.InitMappingInfo<T12>();
+            var result = InstanceFactory.GetQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(this.Context.CurrentConnectionConfig);
+            result.SqlBuilder = this.SqlBuilder;
+            result.Context = this.Context;
+            result.QueryBuilder.JoinQueryInfos.Add(GetJoinInfo(joinExpression, JoinType.Full));
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> RightJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T12>();
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
index eff04d767..71993431d 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
@@ -470,7 +470,7 @@ namespace SqlSugar
             {
                 ++i;
                 var isLast = joinArray.Length == i;
-                var isJoinType = item.IsIn(JoinType.Inner.ToString(), JoinType.Left.ToString(), JoinType.Right.ToString());
+                var isJoinType = item.IsIn(JoinType.Full.ToString(),JoinType.Inner.ToString(), JoinType.Left.ToString(), JoinType.Right.ToString());
                 if (isJoinType)
                 {
                     if (joinValue != null)
diff --git a/Src/Asp.NetCore2/SqlSugar/Enum/JoinType.cs b/Src/Asp.NetCore2/SqlSugar/Enum/JoinType.cs
index 0ee5af88e..aa519b3d5 100644
--- a/Src/Asp.NetCore2/SqlSugar/Enum/JoinType.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Enum/JoinType.cs
@@ -9,6 +9,7 @@ namespace SqlSugar
     {
         Inner = 0,
         Left = 1,
-        Right = 2
+        Right = 2,
+        Full=3
     }
 }
diff --git a/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs b/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
index 8e51a29af..bd9ea9004 100644
--- a/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
@@ -23,6 +23,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2> InnerJoin<T2>(ISugarQueryable<T2> joinQueryable, Expression<Func<T, T2, bool>> joinExpression);
         ISugarQueryable<T, T2> RightJoin<T2>(ISugarQueryable<T2> joinQueryable, Expression<Func<T, T2, bool>> joinExpression);
         ISugarQueryable<T,T2> LeftJoin<T2>(Expression<Func<T,T2,bool>> joinExpression);
+        ISugarQueryable<T, T2> FullJoin<T2>(Expression<Func<T, T2, bool>> joinExpression);
         ISugarQueryable<T, T2> InnerJoin<T2>(Expression<Func<T, T2, bool>> joinExpression);
         ISugarQueryable<T, T2> RightJoin<T2>(Expression<Func<T, T2, bool>> joinExpression);
         ISugarQueryable<T> Filter(string FilterName, bool isDisabledGobalFilter = false);
@@ -204,6 +205,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2,T3> InnerJoin<T3>(ISugarQueryable<T3> joinQueryable, Expression<Func<T, T2,T3, bool>> joinExpression);
         ISugarQueryable<T, T2,T3> RightJoin<T3>(ISugarQueryable<T3> joinQueryable, Expression<Func<T, T2,T3, bool>> joinExpression);
         ISugarQueryable<T, T2,T3> LeftJoin<T3>(Expression<Func<T,T2,T3,bool>> joinExpression);
+        ISugarQueryable<T, T2, T3> FullJoin<T3>(Expression<Func<T, T2, T3, bool>> joinExpression);
         ISugarQueryable<T, T2, T3> InnerJoin<T3>(Expression<Func<T, T2, T3, bool>> joinExpression);
         ISugarQueryable<T, T2, T3> RightJoin<T3>(Expression<Func<T, T2, T3, bool>> joinExpression);
         #region Where
@@ -299,6 +301,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3,T4> InnerJoin<T4>(ISugarQueryable<T4> joinQueryable, Expression<Func<T, T2, T3,T4, bool>> joinExpression);
         ISugarQueryable<T, T2, T3,T4> RightJoin<T4>(ISugarQueryable<T4> joinQueryable, Expression<Func<T, T2, T3,T4, bool>> joinExpression);
         ISugarQueryable<T, T2, T3,T4> LeftJoin<T4>(Expression<Func<T, T2, T3,T4, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4> FullJoin<T4>(Expression<Func<T, T2, T3, T4, bool>> joinExpression);
         ISugarQueryable<T, T2, T3,T4> InnerJoin<T4>(Expression<Func<T, T2, T3,T4, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4> RightJoin<T4>(Expression<Func<T, T2, T3, T4, bool>> joinExpression);
         #region Where
@@ -408,6 +411,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5> InnerJoin<T5>(ISugarQueryable<T5> joinQueryable, Expression<Func<T, T2, T3, T4, T5, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5> RightJoin<T5>(ISugarQueryable<T5> joinQueryable, Expression<Func<T, T2, T3, T4, T5, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4,T5> LeftJoin<T5>(Expression<Func<T, T2, T3, T4,T5, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5> FullJoin<T5>(Expression<Func<T, T2, T3, T4, T5, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4,T5> InnerJoin<T5>(Expression<Func<T, T2, T3, T4,T5, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5> RightJoin<T5>(Expression<Func<T, T2, T3, T4, T5, bool>> joinExpression);
 
@@ -527,6 +531,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6> InnerJoin<T6>(ISugarQueryable<T6> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6> RightJoin<T6>(ISugarQueryable<T6> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5,T6> LeftJoin<T6>(Expression<Func<T, T2, T3, T4, T5,T6, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6> FullJoin<T6>(Expression<Func<T, T2, T3, T4, T5, T6, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5,T6> InnerJoin<T6>(Expression<Func<T, T2, T3, T4, T5,T6, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6> RightJoin<T6>(Expression<Func<T, T2, T3, T4, T5, T6, bool>> joinExpression);
 
@@ -570,6 +575,11 @@ namespace SqlSugar
         #endregion
 
         #region OrderBy
+        new ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, T2, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, T2, T3, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, T2, T3, T4, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5> OrderByDescending(Expression<Func<T, T2, T3, T4,T5,object>> expression);
         new ISugarQueryable<T, T2, T3,T4,T5> OrderBy(string orderFileds);
         new ISugarQueryable<T, T2, T3, T4, T5> OrderBy(Expression<Func<T, object>> expression, OrderByType type = OrderByType.Asc);
         ISugarQueryable<T, T2, T3, T4, T5> OrderBy(Expression<Func<T, T2, object>> expression, OrderByType type = OrderByType.Asc);
@@ -639,6 +649,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7> InnerJoin<T7>(ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7> RightJoin<T7>(ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6,T7> LeftJoin<T7>(Expression<Func<T, T2, T3, T4, T5, T6,T7, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7> FullJoin<T7>(Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6,T7> InnerJoin<T7>(Expression<Func<T, T2, T3, T4, T5, T6,T7, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7> RightJoin<T7>(Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
 
@@ -685,6 +696,12 @@ namespace SqlSugar
         #endregion
 
         #region OrderBy
+        new ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, T3, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, T3, T4, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, T3, T4, T5, object>> expression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6> OrderByDescending(Expression<Func<T, T2, T3, T4, T5,T6, object>> expression);
         new ISugarQueryable<T, T2, T3,T4,T5,T6> OrderBy(string orderFileds);
         new ISugarQueryable<T, T2, T3, T4, T5, T6> OrderBy(Expression<Func<T, object>> expression, OrderByType type = OrderByType.Asc);
         ISugarQueryable<T, T2, T3, T4, T5, T6> OrderBy(Expression<Func<T, T2, object>> expression, OrderByType type = OrderByType.Asc);
@@ -759,6 +776,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> InnerJoin<T8>(ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> RightJoin<T8>(ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> LeftJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7,T8, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> FullJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> InnerJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7,T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> RightJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
 
@@ -872,6 +890,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> InnerJoin<T9>(ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> RightJoin<T9>(ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8,T9> LeftJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8,T9, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> FullJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8,T9> InnerJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8,T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> RightJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
 
@@ -993,6 +1012,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> InnerJoin<T10>(ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> RightJoin<T10>(ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> LeftJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9,T10, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> FullJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> InnerJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> RightJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
 
@@ -1102,6 +1122,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> InnerJoin<T11>(ISugarQueryable<T11> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> RightJoin<T11>(ISugarQueryable<T11> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> LeftJoin<T11>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10,T11, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> FullJoin<T11>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> InnerJoin<T11>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> RightJoin<T11>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression);
 
@@ -1219,6 +1240,7 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> InnerJoin<T12>(ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> RightJoin<T12>(ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12> LeftJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> FullJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12> InnerJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> RightJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);