diff --git a/Src/Asp.Net/SqlSugar/Realization/Dm/DbBind/DmDbBind.cs b/Src/Asp.Net/SqlSugar/Realization/Dm/DbBind/DmDbBind.cs
index e52f971b9..69e351ef0 100644
--- a/Src/Asp.Net/SqlSugar/Realization/Dm/DbBind/DmDbBind.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/Dm/DbBind/DmDbBind.cs
@@ -102,6 +102,9 @@ namespace SqlSugar
                   new KeyValuePair<string, CSharpDataType>("varchar",CSharpDataType.@Guid),
                   new KeyValuePair<string, CSharpDataType>("varchar2",CSharpDataType.@string),
                   new KeyValuePair<string, CSharpDataType>("nvarchar2",CSharpDataType.@string),
+                  new KeyValuePair<string, CSharpDataType>("longvarchar",CSharpDataType.@string),
+                  
+
                   new KeyValuePair<string, CSharpDataType>("char",CSharpDataType.@string),
                   new KeyValuePair<string, CSharpDataType>("nchar",CSharpDataType.@string),
                   new KeyValuePair<string, CSharpDataType>("clob",CSharpDataType.@string),