--- In firebird-support@yahoogroups.com, "Svein Erling" <svein.erling.
tysvaer@k...> wrote:

> I think your sql is ambiguous and am surprised that Firebird doesn't
> reject it due to syntax. If you use two or more occurences of a

table
Hi Set

thanks for your hint. This was the problem.

Regards

Jürgen