Re: A Normalization Question
From: Neo <neo55592_at_hotmail.com>
Date: 12 Jul 2004 16:20:34 -0700
Message-ID: <4b45d3ad.0407121520.57b3f62_at_posting.google.com>
Date: 12 Jul 2004 16:20:34 -0700
Message-ID: <4b45d3ad.0407121520.57b3f62_at_posting.google.com>
> > However, regardless of whether the string 'brown' is categorized as a
> > fact or not by your definition, they still represent the same thing,
> > the string 'brown'. Having three things that represent the same thing
> > in one db is redundant.
>
> It's physically redundant, not logically redundant.
As some have repeated here, RM is a logical model. In general, its implementations doesn't expose the physical layer. The three 'brown' strings stored in a relational database are logically redundant and are subject to update anomalies. Received on Tue Jul 13 2004 - 01:20:34 CEST