Re: Where can i find the original database rules from Codd?

From: Nigel Pendse <nigelp.nospam_at_compuserve.com>
Date: Mon, 1 Mar 2004 13:29:24 -0000
Message-Id: <1078147765.59873.0@dyke.uk.clara.net>

A quick Google search fill find plenty of relevant material, such as

http://www.itworld.com/nl/db_mgr/05072001/
http://newton.uor.edu/FacultyFolder/CKettemborough/Codd12R.html
http://www.itworld.com/nl/db_mgr/09022002/pf_index.html
http://itmanagement.webopedia.com/TERM/C/Codds_Rules.html
http://engr.smu.edu/~fmoore/12rules.htm

Note that Codd's relational rules are nothing to do with his later, and much less respected, OLAP rules.

Codd played a big role in inventing the relational database, so although his relational rules are rather theoretical, they still have some limited relevance some 20 years later. They were, in any case, based on genuine research. On the other hand, he knew almost nothing about OLAP, and had little to do with creating his 12 or 18 OLAP rules, which were based on the features of Essbase, whose vendor sponsored the white paper.

"Tobias Faust" <tobias.faust_at_gmx.net> wrote in message news:c1vc15$1bl7_at_doiweb4.b2x.vwg
> Hi
>
> i´m looking for the original white paper from E.F.Codd with his 9 (8)
> database rules (consistency, transactions or user-management and so
> on.....).
> Wher can i find this?
> Can everybody give me a hint?
>
> greetings
> tobias
Received on Mon Mar 01 2004 - 07:29:24 CST