Hi Martijn

Yes, but my real questions was, is creating and deleting records in this persistent table more better way, or creating and dropping lots of persistent tables as and when the report is run.

Thanks and Regards
Bhavbhuti

--- In firebird-support@yahoogroups.com, "Martijn Tonies" <m.tonies@...> wrote:
> Then I'd say, use an ID column which you populate from a generator.