你可以从ExecuteUpdate来看那个语句是干什么的。
The executeUpdate method is a special case method that calls the underlying ADO execute method with certain parameters. The executeUpdate method does not support the return of a Recordset object, so the execute method's options parameter is modified with AdoEnums.ExecuteOptions.NORECORDS. After the execute method completes, its updated RecordsAffected parameter is passed back to the executeUpdate method, which is finally returned as an int.
当然还要看pDBStmt是什么类型的变量connetico command 是有区别的,