I have an external Oracle table, used in Access as a Linked table using ODBC. Is this linked table always connected? Does it mean it's not a good design practice to use linked table in the application because it's always connected? When I added one clumn in Oracle table, in Access forms, I have to right click the access-Oracle linked table and right click and choose linked table manager, then choose to update the table, then the linked Oracle table will get updated. Could anyone further explain why it is like this? Is there any command to do it in VB editor for this kind of update (form.refresh?)? Thanks a lot.