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Home -> Community -> Usenet -> comp.databases.theory -> Re: Negative Numbers in "Identity" or" Autonumber" fields

Re: Negative Numbers in "Identity" or" Autonumber" fields

From: Marshall <marshall.spight_at_gmail.com>
Date: 20 Mar 2007 23:46:50 -0700
Message-ID: <1174459610.841923.5840@l77g2000hsb.googlegroups.com>


On Mar 20, 10:31 am, "JOG" <j..._at_cs.nott.ac.uk> wrote:
>
> [...] Nothing in a
> proposition should ever be hidden from the user. Propositions come
> from outside of the logical layer after all. If an attribute is an
> identifier then it clearly impacts on identifying items in the real
> world.

I buy the "nothing should be hidden" argument, but I can't decide if a domain that only supports equality is hiding anything or not.

Marshall Received on Wed Mar 21 2007 - 01:46:50 CDT

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