Re: ?? Functional Dependency Question ??
From: paul c <toledobythesea_at_oohay.ac>
Date: Wed, 22 Oct 2008 21:14:34 GMT
Message-ID: <_IMLk.3180$%%2.1399_at_edtnps82>
Date: Wed, 22 Oct 2008 21:14:34 GMT
Message-ID: <_IMLk.3180$%%2.1399_at_edtnps82>
Bob Badour wrote:
...
>
> I think the answer is actually "none of them". If you changed the
> question slightly to "When there are no purple parts, which suppliers
> supply all of the purple parts?" then the answer would be "all of them".
>
Maybe a useful principle to follow when phrasing db queries out loud is to preface all possible parameters with one of the adjectives "all" or "any". Received on Wed Oct 22 2008 - 23:14:34 CEST