Re: Natural keys vs Aritficial Keys
From: David BL <davidbl_at_iinet.net.au>
Date: Fri, 29 May 2009 07:24:52 -0700 (PDT)
Message-ID: <d715ca2e-ad3d-4cf3-b0ff-2e71ccf2a4a3_at_n19g2000vba.googlegroups.com>
Date: Fri, 29 May 2009 07:24:52 -0700 (PDT)
Message-ID: <d715ca2e-ad3d-4cf3-b0ff-2e71ccf2a4a3_at_n19g2000vba.googlegroups.com>
On May 29, 9:53 pm, paul c <toledobythe..._at_oohay.ac> wrote:
> David BL wrote:
>
> ...
>
> > I have no idea what you mean by "relvars are structures (not logical
> > pointers presumably?". Please quote me rather than pretend to quote
> > me.
>
> > "... However with other ways of
> >> composing data structures, sub-variables may not exist. A relvar is
> >> one such example. ..."
> ...
>
> There's your quote for the second time.