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_at_posting.google.com>
Date: 31 Aug 2003 02:09:14 -0700
Message-ID: <57da7b56.0308310109.f2ff901_at_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 - 11:09:14 CEST