Re: Cascade delete question

On Thu, Apr 22, 2004 at 16:46:31 -0400,
  Glenn MacGregor <gtm@highstreetnetworks.com> wrote:
>
> No problem this works great!
>
> Now I have changed my data to
>
> vid    vname        parentname
> 1    n1@test.com
> 2    n2@test.com    n1
> 3    n3@test.com    n1
> 4    n4@test.com    n1
> 5    n5@test.com    n3
>
> Can I change my delete cascade constraint to do this substring query
> instead of an exact match?

No.

> Is there anyway to accomplish what I need to do?

If the local part of the email address is a candidate key, separate it
from the domain name and make it the primary key.