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Re: [Q] Porting SQL to Oracle

From: Tony <andrewst_at_onetel.net.uk>
Date: 13 Jun 2003 02:39:49 -0700
Message-ID: <c0e3f26e.0306130139.2d20e67c@posting.google.com>


Billy Verreynne <vslabs_at_onwe.co.za> wrote in message news:<bcbs5u$cdf$1_at_ctb-nnrp2.saix.net>...
> Malcolm Dew-Jones wrote:
>
> > A string is not a character, it is a set of characters. The number of
> > characters in the set is one of it's attributes. A set of characters that
> > has no charactes in it is still a perfectly good set, just like the bank
> > account with no money is still a bank account.
> >
> > The bank account doesn't magically cease to exist just because it contains
> > no money - the string doesn't magically cease to exist just because it
> > contains no characters.
>
> Wrong analogy. Try it from an OO perspective and see it make perfect sense.

From an OO perspective, lots of nonsenses make sense. From an OO perspective, you can define a rectangle as a subtype of triangle - just add an extra corner attribute! Received on Fri Jun 13 2003 - 04:39:49 CDT

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