Re: relationship in the database

From: Paul Vernon <paul.vernon_at_ukk.ibmm.comm>
Date: Thu, 26 Sep 2002 19:14:27 +0100
Message-ID: <amvj25$c3s$1@sp15at20.hursley.ibm.com>

>Perhaps the model is not bad, but just incomplete? My
>understanding from reading TTM just is that this is not the
>case. I see no place for UPDATE there, and do so in the basis
>of a quote on page 165 (second edition): [Relational]
> "assignments are fundamentally the only means by which a relvar
> can be updated".

TTM is a book to read carefully. Just two pages on from that quote they explain how UPDATE is supported.

BTW, I think our philosophies match quite well

:-)

Regards
Paul Vernon
Business Intelligence, IBM Global Services Received on Thu Sep 26 2002 - 13:14:27 CDT