--- In IBObjects@y..., Helen Borrie <helebor@d...> wrote:

> I'd be astonished if you were able to put multiple statements into

the UpdateSQL or DeleteSQL properties.

Sorry for the confusion! I've just put the multiply update, delete
statements in the query editor, prepared it and it throws no
exception. What confused me was that multiply insert statements throw
exceptions when the query is prepared.
I will now follow the advise and try to use a SP.

Thanks and Regards,
Tilo