Re: Artificial Primary keys

"Bernard Peek" <bap_at_shrdlu.com> skrev i en meddelelse news:vu1qAgE4w+V8EwGm_at_shrdlu.com...
> In message <a35ik2$ri2$1_at_news.net.uni-c.dk>, Jan Emil Larsen
> <jel_at_g-it.dk> writes
>
>
> >
> >>But there
> >> is no obvious relation between the value of the surrogate and the
object
> >> which it claims to identify, making it very difficult to detect that an
> >> error has been made.
> >As such an error can not be made, there is no need to detect it!
>
> If you can declare that a surrogate key can't be recorded incorrectly
> then I can declare that a natural key can't be receded incorrectly,
> which removes your last objection to using natural keys.

How? Example? (I assume we are talking of a natural key that carries information) Received on Fri Feb 01 2002 - 14:05:13 CET