> From a performance POV it's certainly an effective way to slow down
> your operation. Rather than using this approach to feed a progress
> bar or whatever, I'm much more comfortable with running an executable
> procedure in a IB_DSQL, that returns a summary upon completion...or a
> simple exception if it fails. Fast execution, no cleanup to do, and
> you can do a simple character animation in a status bar to emulate a
> progress indicator if your users want feedback.

When I run the SP in a IB_DSQL and the SP takes for example 10 minutes,
then I can't give the user a feedback until the SP has finished. That's
why I use it a selectable SP. The only solution would be, to run the
IB_SQL in a different process, but that's too complex in this situation.

Regards

Guido