Re: 1 NF
From: mAsterdam <mAsterdam_at_vrijdag.org>
Date: Thu, 01 Mar 2007 19:59:48 +0100
Message-ID: <45e72237$0$336$e4fe514c_at_news.xs4all.nl>
Date: Thu, 01 Mar 2007 19:59:48 +0100
Message-ID: <45e72237$0$336$e4fe514c_at_news.xs4all.nl>
frebe wrote:
> I read an interview with Chris Date
> ( http://www.dbmsmag.com/int9410.html )
> which made me a little bit confused. He claims that
> having an array as a column values doesn't violates 1NF. Is this the
> common opinion at comp.databases.theory too?
Yes, I think it is.
> If yes, how is it possible at apply 1NF at all, in that case?
Distinguish between the whole of the array as a value and the individual elements. These individual elements are considered to be invisible. Received on Thu Mar 01 2007 - 19:59:48 CET