Zoran Zivkovic wrote:

> --- In firebird-support@yahoogroups.com, John vd Waeter <john@...>
> wrote:
> No results, same problem, same error.
>
> Regards
>
> Zile
>

ok.. if you comment out the sum and the group by, is the query result as
expected?
(just to rule out a possible problem with the date-parameters)