Hi Jason,

it seems a bit complicated... In the meantime I found out, if I start the loop (via ButtonClick) and move the mouse outside the main window, the performance is nomal! Only if the mouse cursor is inside the window, performance is slow...

FetchWholeRows is true and I doesn't use the SQL-Trace monitor until now...

--- In IBObjects@yahoogroups.com, "IBO Support List" <supportlist@...> wrote:
>
> What is FetchWholeRows set to?
> What does the SQL trace monitor reveal?
>
> Jason
>