diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider02-05.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider02-05.cs
index d7f164d3f..dbc2ce0da 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider02-05.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider02-05.cs
@@ -16,6 +16,16 @@ namespace SqlSugar
     #region T2
     public partial class QueryableProvider<T, T2> : QueryableProvider<T>, ISugarQueryable<T, T2>
     {
+        public new ISugarQueryable<T, T2> SampleBy(int timeNumber, SampleByUnit timeType) 
+        {
+             base.SampleBy(timeNumber, timeType);
+             return this;
+        }
+        public new ISugarQueryable<T, T2> SampleBy(int timeNumber, string timeType) 
+        {
+            base.SampleBy(timeNumber, timeType);
+            return this;
+        }
         public virtual ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T,T2, TResult>> expression)
         {
             return this.Select(expression).MergeTable();
@@ -613,6 +623,16 @@ namespace SqlSugar
     #region T3
     public partial class QueryableProvider<T, T2, T3> : QueryableProvider<T>, ISugarQueryable<T, T2, T3>
     {
+        public new ISugarQueryable<T, T2,T3> SampleBy(int timeNumber, SampleByUnit timeType)
+        {
+            base.SampleBy(timeNumber, timeType);
+            return this;
+        }
+        public new ISugarQueryable<T, T2,T3> SampleBy(int timeNumber, string timeType)
+        {
+            base.SampleBy(timeNumber, timeType);
+            return this;
+        }
         public virtual ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T, T2,T3, TResult>> expression)
         {
             return this.Select(expression).MergeTable();
@@ -1316,6 +1336,16 @@ namespace SqlSugar
     #region T4
     public partial class QueryableProvider<T, T2, T3, T4> : QueryableProvider<T>, ISugarQueryable<T, T2, T3, T4>
     {
+        public new ISugarQueryable<T, T2,T3,T4> SampleBy(int timeNumber, SampleByUnit timeType)
+        {
+            base.SampleBy(timeNumber, timeType);
+            return this;
+        }
+        public new ISugarQueryable<T, T2,T3, T4> SampleBy(int timeNumber, string timeType)
+        {
+            base.SampleBy(timeNumber, timeType);
+            return this;
+        }
         public virtual ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T, T2, T3,T4, TResult>> expression)
         {
             return this.Select(expression).MergeTable();
@@ -2040,6 +2070,16 @@ namespace SqlSugar
     #region T5   
     public partial class QueryableProvider<T, T2, T3, T4, T5> : QueryableProvider<T>, ISugarQueryable<T, T2, T3, T4, T5>
     {
+        public new ISugarQueryable<T, T2,T3, T4,T5> SampleBy(int timeNumber, SampleByUnit timeType)
+        {
+            base.SampleBy(timeNumber, timeType);
+            return this;
+        }
+        public new ISugarQueryable<T, T2,T3, T4,T5> SampleBy(int timeNumber, string timeType)
+        {
+            base.SampleBy(timeNumber, timeType);
+            return this;
+        }
         public virtual ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T, T2, T3, T4, T5, TResult>> expression)
         {
             return this.Select(expression).MergeTable();
diff --git a/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs b/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
index 3c5ccdc73..9d20283d2 100644
--- a/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
@@ -268,6 +268,8 @@ namespace SqlSugar
     }
     public partial interface ISugarQueryable<T, T2> : ISugarQueryable<T>
     {
+        new ISugarQueryable<T,T2> SampleBy(int timeNumber, SampleByUnit timeType);
+        new ISugarQueryable<T,T2> SampleBy(int timeNumber, string timeType);
         ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T,T2, TResult>> expression);
         ISugarQueryable<T, T2,T3> LeftJoinIF<T3>(bool isLeftJoin, Expression<Func<T, T2,T3, bool>> joinExpression);
         ISugarQueryable<T, T2,T3> InnerJoinIF<T3>(bool isJoin, Expression<Func<T, T2,T3, bool>> joinExpression);
@@ -386,6 +388,8 @@ namespace SqlSugar
     }
     public partial interface ISugarQueryable<T, T2, T3> : ISugarQueryable<T>
     {
+        new ISugarQueryable<T, T2,T3> SampleBy(int timeNumber, SampleByUnit timeType);
+        new ISugarQueryable<T, T2,T3> SampleBy(int timeNumber, string timeType);
         ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T, T2,T3, TResult>> expression);
         ISugarQueryable<T, T2, T3,T4> LeftJoinIF<T4>(bool isLeftJoin, Expression<Func<T, T2, T3,T4, bool>> joinExpression);
         ISugarQueryable<T, T2, T3,T4> InnerJoinIF<T4>(bool isJoin, Expression<Func<T, T2, T3,T4, bool>> joinExpression);
@@ -519,6 +523,8 @@ namespace SqlSugar
     }
     public partial interface ISugarQueryable<T, T2, T3, T4> : ISugarQueryable<T>
     {
+        new ISugarQueryable<T, T2, T3,T4> SampleBy(int timeNumber, SampleByUnit timeType);
+        new ISugarQueryable<T, T2, T3,T4> SampleBy(int timeNumber, string timeType);
         ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T, T2, T3,T4, TResult>> expression);
         ISugarQueryable<T, T2, T3, T4,T5> LeftJoinIF<T5>(bool isLeftJoin, Expression<Func<T, T2, T3, T4,T5, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4,T5> InnerJoinIF<T5>(bool isJoin, Expression<Func<T, T2, T3, T4,T5, bool>> joinExpression);
@@ -658,6 +664,8 @@ namespace SqlSugar
     }
     public partial interface ISugarQueryable<T, T2, T3, T4, T5> : ISugarQueryable<T>
     {
+        new ISugarQueryable<T, T2, T3, T4,T5> SampleBy(int timeNumber, SampleByUnit timeType);
+        new ISugarQueryable<T, T2, T3, T4,T5> SampleBy(int timeNumber, string timeType);
         ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T, T2, T3,T4,T5, TResult>> expression);
         ISugarQueryable<T, T2, T3, T4, T5,T6> LeftJoinIF<T6>(bool isLeftJoin, Expression<Func<T, T2, T3, T4, T5,T6, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5,T6> InnerJoinIF<T6>(bool isJoin, Expression<Func<T, T2, T3, T4, T5,T6, bool>> joinExpression);