Re: Modeling question...
Date: Thu, 13 Nov 2008 00:39:49 GMT
Message-ID: <pHKSk.39$jr4.14_at_edtnps82>
Roy Hann wrote:
> paul c wrote:
>
>> paul c wrote:
>>
>>> Aren't all identifiers artificial? ...
>> Ie., we make them up.
>
> You need to be more precise. All identifiers are made up somewhere, but
> not necessarily within the enterprise of interest. "We" might not
> need to make up any. Or we might need to make up a few--ideally the
> fewest sufficient.
>
Sure. But as for "not necessarily within the enterprise of interest", why does such a distinction matter?
(BTW, I wasn't implying that I agree with the lazy shallow people who think every relation should have a generated key. I piped up because I'm always happy to try to keep threads about RVA's or recursion or constraints alive. The latter two areas seem rather under-explored to me.) Received on Thu Nov 13 2008 - 01:39:49 CET