diff --git a/Src/Asp.NetCore2/SqlSugar/OnlyCore/PartialExpressionContexts.cs b/Src/Asp.NetCore2/SqlSugar/OnlyCore/PartialExpressionContexts.cs
index 7e982b12b..55f11f79a 100644
--- a/Src/Asp.NetCore2/SqlSugar/OnlyCore/PartialExpressionContexts.cs
+++ b/Src/Asp.NetCore2/SqlSugar/OnlyCore/PartialExpressionContexts.cs
@@ -13,4 +13,10 @@ namespace SqlSugar
     public partial class OracleExpressionContext
     {
     }
+    public partial class MySqlBlukCopy<T> 
+    {
+    }
+    public partial class OracleBlukCopy
+    {
+    }
 }
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlukCopy.cs b/Src/Asp.NetCore2/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlukCopy.cs
index 5f3d5d447..d5d8e24e9 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlukCopy.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlukCopy.cs
@@ -9,7 +9,7 @@ using System.Text;
 using System.Threading.Tasks;
 namespace SqlSugar
 {
-    public class MySqlBlukCopy<T> 
+    public partial class MySqlBlukCopy<T> 
     {
         internal SqlSugarProvider Context { get; set; }
         internal ISqlBuilder Builder { get; set; }
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/SqlBuilder/OracleBlukCopy.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/SqlBuilder/OracleBlukCopy.cs
index bf9834970..f6a4dbd11 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/SqlBuilder/OracleBlukCopy.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/SqlBuilder/OracleBlukCopy.cs
@@ -16,7 +16,7 @@ using System.Threading.Tasks;
 namespace SqlSugar
 {
 
-    public class OracleBlukCopy
+    public partial class OracleBlukCopy
 
     {