diff --git a/ADO.md b/ADO.md
index 5086be9..12ccfb9 100644
--- a/ADO.md
+++ b/ADO.md
@@ -61,6 +61,7 @@ fsql.Ado.CommandFluent("dbo.GetICMaxNum")
     .WithParameter("TableName", "tb1")
     .WithParameter("FInterID", null, p =>
     {
+        //(p as OracleParameter).OracleType = ...;
         p2 = p; //Output 参数
         p.DbType = DbType.Int32;
         p.Direction = ParameterDirection.Output;