CRecordset - 在Update（）之后获取自动生成的ID

Having just called Update() on an MFC CRecordset (ODBC/Dynaset) what can I do to pull the auto-generated ID without hitting the database again? Ideally whatever it is would work in both SQL Server and MS Access (so querying for the last identity might not work...)Having just called Update() on an MFC CRecordse