Re: database design method

From: Lauri Pietarinen <lauri.pietarinen_at_atbusiness.com>
Date: 13 Nov 2002 01:43:29 -0800
Message-ID: <e9d83568.0211130143.41244a3f@posting.google.com>

Jan,

> >> You can. But I don't think you should be using algebra operators for that
> >> but a more declarative type of language. I assume Dataphor has that?
> >
> >What on earth could be more declarative than relational operators???
>
> The relational calculus.
>

The Third Manifesto gives a
relational Calculus Version
of Tutorial D in Appendix A.

Dataphor does not have the calculus.

regards,
Lauri Pietarinen Received on Wed Nov 13 2002 - 03:43:29 CST