Re: Modeling question...

From: David BL <davidbl_at_iinet.net.au>
Date: Thu, 23 Oct 2008 19:29:01 -0700 (PDT)
Message-ID: <f5d3ffe3-3ab8-4045-98dd-b88e2daf087d_at_v53g2000hsa.googlegroups.com>


On Oct 24, 3:55 am, toby <t..._at_telegraphics.com.au> wrote:
> On Oct 23, 12:09 pm, paul c <toledobythe..._at_oohay.ac> wrote:
>
> > David BL wrote:
>
> > ...
>
> > > If the relational model is universally applicable, why don’t
> > > programmers enter their programs as relations? ...
>
> > That is one of the most fundamental questions. At the risk of sounding
> > like I'm sloughing it off, I'd say the answer has to do with tedium and
> > lies somewhere near the fact that we have shortcuts and shorthands to
> > give equivalent results and our human situation, limitations in
> > momentary perception such as our shallow mental stack.
>
> Many programs, or parts thereof, reduce to SQL expressions over data.
> Programmers who don't understand RM well tend to under-use it for
> computation. A declarative expression can often elide a lot of
> imperative tedium.

I agree with you but you seem to have missed the point. For example, can SQL expressions themselves be satisfactorily entered as relations? Received on Fri Oct 24 2008 - 04:29:01 CEST

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