> What puzzles me is why IBO does not automatically use DB_KEY internally
> instead of KeyLinks ?

I allow it to be used and do use it when no other option exists.

The reason I don't just use it is because you don't know it for a record
until after it has been inserted. Thus, it does not work well for buffered
inserts. The client would lose track of the record and not be able to
synchronize with it.

Set your KeyLinks to RDB$DB_KEY and do an insert, post it and then do an
edit and see what you get. Unable to locate record is the result.

HTH,
Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com