Re: Much Ado about Nothing
From: JRStern <JRStern_at_gte.net>
Date: Sat, 24 Feb 2001 20:02:22 GMT
Message-ID: <3a981385.4701840_at_news.gte.net>
Date: Sat, 24 Feb 2001 20:02:22 GMT
Message-ID: <3a981385.4701840_at_news.gte.net>
On Sat, 24 Feb 2001 14:07:30 -0500, "Bob Badour" <bbadour_at_golden.net>
wrote:
>You bring up an important point. The SQL model and the relational model
>differ on a number of very important points with the most important being:
>relations must be in first normal form and SQL tables need not be.
>
>Specifically, this means that SQL allows duplicate rows and SQL allows NULL.
This implies that requiring a PK is not a 1nf matter?
J. Received on Sat Feb 24 2001 - 21:02:22 CET