Re: By The Dawn's Normal Light
From: Marshall Spight <mspight_at_dnai.com>
Date: Sat, 23 Oct 2004 18:57:04 GMT
Message-ID: <4Qxed.236902$wV.124378_at_attbi_s54>
Date: Sat, 23 Oct 2004 18:57:04 GMT
Message-ID: <4Qxed.236902$wV.124378_at_attbi_s54>
"Ja Lar" <jalar_at_nomail.com> wrote in message news:clalor$po7$1_at_news.net.uni-c.dk...
>
> "Laconic2" laconic2_at_comcast.net...
> >
> > But if 1NF is defined on RELATIONS, not TABLES, part A above is
> > superfluous. A RELATION is, by definition, a set. In a set, different
> > elements are always distinct. The no duplicates rule is inherent in the
> > definition of a set.
> >
> A RELATION is, by definition, in 1NF.
To effectively apply a "by definition" argument, the definition used has to be one that pretty much everyone agrees on. This is not the case here; the definition you use is a minority opinion.
Marshall Received on Sat Oct 23 2004 - 20:57:04 CEST