Re: delete with referential integrity

On Thu, Aug 29, 2002 at 12:54:23PM -0400, Michael Zouroudis wrote:
> i promise this will be my last post for a long time. my last problem on
> my db is caused by a trigger. i have three tables involved; assets,
> book_asset, and book. because of integrity constraints, i have to
> delete the record from book_asset, then book, and finally assets. all
> inserts, updates, and deletes are done through the assets table, and i
> have a trigger on assets that first deletes book_asset, then books, and
> finally assets. the problem is when it deletes assets on that third
> delete, it sends the db into a recursive loop(the delete on assets
> starts the trigger again). i am searching for an answer, but have not
> found one in the last hour and a half. if someone has encounted this
> problem before and knows a solution, i would be very grateful. the only
> thing i have found is a function called _funny_dup17()_, but this seems
> to be only for regression tests. besides from that, i am out of ideas.

You should be able to set you constraint to delete the entries in the
other tables automaticly instead of refusing. Then you don't need the
triggers.

--
Ragnar Kjørstad