Re: Domain
From: Adrian Kubala <adrian_at_sixfingeredman.net>
Date: Tue, 6 Jan 2004 15:42:58 -0600
Message-ID: <slrnbvmav2.ba0.adrian_at_sixfingeredman.net>
Date: Tue, 6 Jan 2004 15:42:58 -0600
Message-ID: <slrnbvmav2.ba0.adrian_at_sixfingeredman.net>
I wrote:
Bob Badour wrote:
and later wrote:
So:
What's the difference between a function "value -> current position
within value" and a function "date -> month"?
Month is a derivable value from any date value. Since values have no
locations, a current position within a value is an absurdity.
Since all values in an actual dbms are finite, I do not find this a
useful distinction either.
All values in an actual dbms also have some concrete representation,
which have locations (or rather, within which one can name a location
for each part of the representation, like a bit). So I still don't see