Re: So what's null then if it's not nothing?
Date: Wed, 23 Nov 2005 16:02:03 +0100
Message-ID: <4384847e$1_at_news.fhg.de>
Jon Heggland schrieb:
> In article <438456fe$1_at_news.fhg.de>, spam@conceptoriented.com says...
>
>>>You mean you would create a table for each *combination* of attributes? >>>What on earth for? >> >>In order to avoid nulls (there is an opinion that they need to be >>removed from schema).
>
>
> I get that part. But why one for each combination? Why not just one per
> attribute?
Yes, there are several alternative designs:
Probably there could be also other designs that allow us to avoid nulls.
-- http://conceptoriented.comReceived on Wed Nov 23 2005 - 16:02:03 CET