Re: database market share 2003

From: Haider Rizvi <haider_at_nouce.ca.ibm.com>
Date: Wed, 16 Jun 2004 10:28:28 -0400
Message-ID: <7zwu27k25v.fsf@thinkhr.torolab.ibm.com>

Serge Rielau <srielau_at_ca.eye-be-em.com> writes:

> 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 :-(

I guess he is talking about Codd's 12 rules, http://www.frick-cpa.com/ss7/Theory_RelationalDB.asp

Dr. Codd was of course an IBM fellow, and the inventor of the relational model. Based on his relational model, IBM research came up with 'System R' a relational database research project. IBM's SQL/DS and DB2, Oracle, were some of the first few commercial rdbms drawing heavily from the System R research project.

http://www.research.ibm.com/resources/news/20030423_edgarpassaway.shtml

Regards,

-- 
Haider

Received on Wed Jun 16 2004 - 09:28:28 CDT