Re: A pk is *both* a physical and a logical object.
Date: Thu, 16 Aug 2007 03:45:03 GMT
Message-ID: <3LPwi.33523$2v1.32442_at_newssvr14.news.prodigy.net>
"JOG" <jog_at_cs.nott.ac.uk> wrote in message news:1187201696.390580.326600_at_19g2000hsx.googlegroups.com...
[big snip]
>
> I'm not sure you are ready (or perhaps entrenched) to get through the
> hurdle of viewing identity as subjective, and not omnipotently
> defined. I'm not sure I can explain it any better than I have
> attempted, so there I will gracefully retire, and let you have the
> last word if you so desire.
>
I think that a subjective interpretation of identity is incompatible with the purpose of a database, which is to house not only what can be known by any user, but rather what can be known by all users.
> I hope there will be a time when you will be convinced, as it is
> something that now seems very clear to me, while also providing
> elegant theory and solid practical consequences for schema.
>
Received on Thu Aug 16 2007 - 05:45:03 CEST