On Mon, 6 May 2002, Erwin Ambrosch wrote:
> can I change the foreign key optins (e.g. ON UPDATE, ON DELETE) after the
> table has been created. And if yea, does the change also affect already
> inserted rows.
You could drop the triggers and then recreate the constraint
with alter table. That won't affect past changes (for example rows that
were deleted by a on delete cascade wouldn't suddenly become visible with
nulls if it were changed to on delete set null).