Database Diff - Generates Create commands only (does not list alter command

Question

Hi I'm using very latest version of the SQL developer. I was using Database Diff feature and found issue that when there is differences in table (say a addition column exits in one of the database), generate script generates "Create table..."statement. I would rather expect alter table because table exist on both databases but a column was different.
If I take that script try to create table on the database that has difference, then I would have to lose all data (of course there are alternatives), which is not very efficient script then.
any ideas if there is an option to show alter commnads?
thanks.

Answer 1

The usage of the Diff wizard is not crystal clear.
If your connections are as user X, but the objects are owned by user Y, they won't be picked up in the target connection. Although you are allowed to pick objects from different users (user Y) on the source side, the comparison seems to be with user X on the target side. For it to work properly, you need to define connections ob both sides as user Y. I haven't really tested this thoroughly because I don't have the change management pack licensed anywhere.