Re: Poll: What percentage advantage are RDBMS vendors taking of the RM?

From: Alfredo Novoa <alfredo_novoa_at_hotmail.com>
Date: Tue, 07 Jun 2005 18:01:31 +0200
Message-ID: <j6hba113mlaijhddpiqrvjpusijgnitsmr@4ax.com>

On Tue, 07 Jun 2005 16:43:32 +0100, Paul <paul_at_test.com> wrote:

>Well here's a list of Codd's 12 rules, which are general guidelines for
>a DBMS to be thought of as relational:

Codd's 12 rules were outdated by Codd's 333 rules, and Codd's 333 rules were outdated by The Third Manifesto.

>It's easy to criticise DBMS designers for not building a
>fully-relational product, but I think the practical problems are bigger
>than we might think. It's a serious level of abstraction, especially
>when you consider that many DBMSs were started years ago when computer
>were many orders of magnitude less powerful than they are today.

Excuses :)

>I'll give them 8 out of 10 for effort. :)

I'll give 4 for results.

Regards Received on Tue Jun 07 2005 - 11:01:31 CDT