Marco Lauria wrote:

>
>
> If I delete the F_STRIP_TIME( RV.DATA ) AS DATANOORA everything
> works correctly,
> but I need it....
> how can I avoid this?

You can't. There has never been support in InterBase for group by operations
on user defined functions. An attempt was made to add this in Beta 2. The
feature just didn't work consistently and has now been removed.

Paul
--

Paul Reeves
http://www.ibphoenix.com
taking InterBase further