Re: 1st and 2nd NF

From: Alfredo Novoa <alfredo_at_ncs.es>
Date: 6 Dec 2003 03:46:24 -0800
Message-ID: <e4330f45.0312060346.6e81a2bc@posting.google.com>

Larry Coon <lcnospam_at_assist.org> wrote in message news:<3FD0E098.2D19_at_assist.org>...

> If I remember right, it was the Silberschatz textbook that did that.

Korth and Silberschatz are wrong about this.

> In simple terms, 1NF simply says "scalar values only." At the
> intersection of a row and column, you will find only atomic values.

It should be you will find an unique value, but not necessarily an scalar value.

Relations are in 1NF by definition.

Regards
Alfredo Received on Sat Dec 06 2003 - 05:46:24 CST