Re: Relational Catalog (was Re: Database Builders, Code Generators, On-Topic?)
From: Kenneth Downs <ken_remove_underscores_downs_at_downsfam.net>
Date: Mon, 09 Jun 2003 22:45:26 -0400
Message-ID: <6og3cb.dh9.ln_at_mercury.downsfam.net>
>
> 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.
>
Date: Mon, 09 Jun 2003 22:45:26 -0400
Message-ID: <6og3cb.dh9.ln_at_mercury.downsfam.net>
Quoting unnamed sources, Alfredo Novoa claimed:
> 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.
>
Can you help a n00b with some translation, or perhaps point to a book to read to decode this?
>
> Regards
> Alfredo
-- Kenneth DownsReceived on Tue Jun 10 2003 - 04:45:26 CEST