Re: Questions on possreps
Date: Mon, 13 Jun 2011 04:40:04 -0700 (PDT)
Message-ID: <9e8a55fb-0ae3-4cbe-953b-fafd100439a1_at_m10g2000yqd.googlegroups.com>
On May 26, 5:04 am, David BL <davi..._at_iinet.net.au> wrote:
David BL cites an example from that book and asks a lot of questions
about possreps, sometimes using phrasing such as "Does Date think
that ...", "Is it Date's position that ...".
The possrep concept arose in a joint work by me and Chris Date: "The
Third Manifesto", which Erwin Smout has correctly referred to in his
responses, both in this thread and the earlier one on David BL's
alternative proposal. I have not had time to study the entire
> On page 116 of An Introduction to Database Systems (8th edition) Chris
> Date [...]
For now, I just hope the following points about possreps and selectors
are clear:
Hugh Darwen Received on Mon Jun 13 2011 - 13:40:04 CEST