RE: codd's 12 Rules

Ooof. Did I just feel a tremor in the force?

TomH

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
Sent: Friday, May 17, 2013 1:49 PM
To: Midrange Systems Technical Discussion
Subject: Re: codd's 12 Rules

I dunno, I read those rules and it seems that 9,10,11,12 all are supportable
on IBM i. Need someone more smarterer on the DB than me....

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 5/17/2013 2:43 PM, Charles Wilt wrote:

I seem to recall hearing that no current RDBMS meets all of Codd's rules..

http://www.cse.ohio-state.edu/~sgomori/570/coddsrules.html

"Note that based on these rules there is no fully relational database
management system available today. In particular, rules 6, 9, 10, 11
and 12 are difficult to satisfy."

Charles


On Fri, May 17, 2013 at 2:29 PM, Nathan Andelin <nandelin@xxxxxxxxx>

wrote:

Does AS/400 follows all 12 codd's rules.

Yes, Absolutely. Unequivocally.

-Nathan

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