Re: Relational Catalog (was Re: Database Builders, Code Generators, On-Topic?)
From: Alfredo Novoa <alfredo_at_ncs.es>
Date: 9 Jun 2003 05:02:53 -0700
Message-ID: <e4330f45.0306090402.762a5d8c_at_posting.google.com>
Date: 9 Jun 2003 05:02:53 -0700
Message-ID: <e4330f45.0306090402.762a5d8c_at_posting.google.com>
Kenneth Downs <ken_remove_underscores_downs_at_downsfam.net> wrote in message news:<8rvgbb.7t5.ln_at_mercury.downsfam.net>...
> What can you tell me about your catalog?
Not a lot. It does not have anything special.
I designed it taking the Principle of Orthogonal Design into account.
But Hugh Darwen told me recently that Date and himself are
reconsidering the POOD.
I also have doubts about the representation of expresions, like views,
constraints, operators code, etc.
I am representing expressions with directed acyclic graphs represented
by relations, but I am not sure about it is a good approach.
Regards
Alfredo
Received on Mon Jun 09 2003 - 14:02:53 CEST