Re: Negative Numbers in "Identity" or" Autonumber" fields
Date: 21 Mar 2007 09:24:44 -0700
On Mar 21, 8:28 am, Bob Badour <bbad..._at_pei.sympatico.ca> wrote:
> Marshall wrote:
> > On Mar 21, 4:00 am, Bob Badour <bbad..._at_pei.sympatico.ca> wrote:
> >>Marshall wrote:
> >>>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
> >>>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.
> >>It has to have at least one possible representation.
> > Can you elaborate? Why does it need at least one?
> > What breaks if it doesn't?
> How does one express any literal without at least one possible
What breaks if a type doesn't have literals?
Marshall Received on Wed Mar 21 2007 - 17:24:44 CET