Re: database market share 2003

From: Paul Vernon <paul.vernon_at_ukk.ibmm.comm>
Date: Wed, 16 Jun 2004 15:10:30 +0100
Message-ID: <capkk6$1v4a$1@gazette.almaden.ibm.com>

"Serge Rielau" <srielau_at_ca.eye-be-em.com> wrote in message news:capg0m$oio$1_at_hanover.torolab.ibm.com...
> Noons wrote:
> > Given that it is the ONLY commercial RDBMS out there that follows
> > most of the relational db 12 rules, it probably deserves to be better
> > represented in education institutions.
> "Relational db 12 rules"? Care to elaborate?
> At the risk of looking stupid: I draw a blank here.
> I only know of normal forms, relational algebra and SQL :-(

Stuipid? No, but one can always know more.

Here is Chris Date's take on "different relational models" where the 12 rules are mentioned in passing.

http://www.dbdebunk.com/page/page/622839.htm

More interestingly than those 12 rules however, would be too see which current DBMS most closely resembles say Data & Darwen's proposals for a clean relational database system.

Regards
Paul Vernon
Business Intelligence, IBM Global Services Received on Wed Jun 16 2004 - 09:10:30 CDT