Re: Multiple parent design
Date: Fri, 16 Apr 2004 14:55:31 GMT
Bleh. Couple of reasons for not liking this solution:
- It is denormalized.
- As such, it does not account for the addition of other parent entities.
"Laconic2" <laconic2_at_comcast.net> wrote in message
> Create two columns in the phone table, Person_id and Company_id. Enforce
> referential integrity on each one separately. Allow each one to be NULL.
> If necessary, enforce a constraint that either Person_id or Company_id
> be null.
Received on Fri Apr 16 2004 - 16:55:31 CEST