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.
