diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/DbMaintenance/OracleDbMaintenance.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/DbMaintenance/OracleDbMaintenance.cs
index afc9fa2ff..583276f0f 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/DbMaintenance/OracleDbMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/DbMaintenance/OracleDbMaintenance.cs
@@ -641,6 +641,10 @@ WHERE table_name = '"+tableName+"'");
                 x.Length = 0;
                 x.DecimalDigits = 0;
             }
+            if (x.OracleDataType.HasValue()) 
+            {
+                x.DataType = x.OracleDataType;
+            }
         }
         #endregion
     }