Those aren't called derived tables, but table inheritance (or inherited tables) AFAIK.

Mark

> AB> Derived tables are already implemented in Firebird some time ago, so
> this is already available.
>
> AB> Regards,
> AB> Arno Brinkman
>
> Alex was talking about a different thing:
>
> http://www.firebirdnews.org/?p=3830

--
Sarah Kreuz, die DSDS-Siegerin der Herzen, mit ihrem eindrucksvollen
Debütalbum "One Moment in Time". http://portal.gmx.net/de/go/musik