Re: Multiplicity, Change and MV
From: x <x_at_not-exists.org>
Date: Thu, 13 Apr 2006 18:37:05 +0300
Message-ID: <e1lr5t$v37$1_at_emma.aioe.org>
Date: Thu, 13 Apr 2006 18:37:05 +0300
Message-ID: <e1lr5t$v37$1_at_emma.aioe.org>
"Neo" <neo55592_at_hotmail.com> wrote in message news:1144897646.123286.72680_at_v46g2000cwv.googlegroups.com...
> Hmm, I interpretted the OP's question to mean, what initial schema will
> allow me to avoid schema changes later. For obvious reasons, people
> have difficulty confronting: how to design for the unknown. This is
> what I call an AI-ish type of problem for which RM isn't practical.
I don't know your definition of schema.
I have searched Codd's 1970 ACM paper and found 0 occurences of this word.
I have searched Codd's 1979 ACM paper and found 1 occurence of schemata and
1 occurence of schema.
In this RM/T paper some operators are defined for dealing with these
schema/schemata.
Received on Thu Apr 13 2006 - 17:37:05 CEST