Re: Is mysql a RDBMS ?

From: Paul G. Brown <paul_geoffrey_brown_at_yahoo.com>
Date: 31 Aug 2003 02:09:14 -0700
Message-ID: <57da7b56.0308310109.f2ff901@posting.google.com>

"Mikito Harakiri" <mikharakiri_at_ywho.com> wrote in message news:<m6t2b.11$V06.203_at_news.oracle.com>...

> I don't know. I would certainly be on your side if relational theory would
> comprise all the math, not predicate calculus only. For example, how would
> you represent multivariate polynomial
>
> 3*x*y^2+5*x^3
>
> relationally?

The way you might in Datalog:

   POLY( X, Y, R );    ANSWER( R ) := POLY( X, Y, R ), X = 5, Y = 7;    ANSWER
          R
   +-------+
   | 12250 |
   +-------+

(Which leaves a lot out, of course. . .) Received on Sun Aug 31 2003 - 04:09:14 CDT