Re: database design method
Date: Mon, 11 Nov 2002 22:07:33 GMT
"Jan Hidders" <hidders_at_REMOVE.THIS.uia.ua.ac.be> wrote in message
> D Guntermann wrote:
> > But perhaps one of these days Date will explain to use that this is what
> Codd had meant all along. :-)
> -- Jan Hidders
You mean where Dr. Codd states the following in his "A Relational Model of Data for Large Shared Data Banks." paper (p. 380)?
"So far , we have discussed examples of relations which are defined on simple domains-domains whose elements are atomic (nondecomposable) values. Nonatomic values can be discussed within the relational framework. Thus, some domains may have relations as elements. These relations may, in turn, be defined on nonsimple domains, and so on."
E.F. Codd. "Relational Model of Data for Large Shared Databanks. Comm. ACM 13, 6 (June 1970)
Daniel Guntermann Received on Mon Nov 11 2002 - 23:07:33 CET