|Subject||Re: Helen: Low Selectivity Problem|
> See my posting yesterday in response to Raymond Kennington'sthread
> "Foreign keys and low selectivity".archives on the
> Also (when the Atkin server comes back to life) search the
> word "selectivity".this
> As for referential integrity, it is perfectly possible to manage
> yourself with triggers. I don't have time to "write the manual"for you
> but trying searching the net for articles about the concept - it'sa
> structural issue rather than one that's database-specific. Seealso CREATE
> EXCEPTION, a handy tool in writing RI triggers...Understood, and will do.
Sorry, I just panicked when I read your post.