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Re: Oracle and PICK

From: Anthony W. Youngman <wol_at_thewolery.demon.co.uk>
Date: Sat, 24 Apr 2004 12:35:31 +0100
Message-ID: <xeAb8hDDEliAFw9e@thewolery.demon.co.uk>


In message <c0e3f26e.0404171002.3c3ae4c2_at_posting.google.com>, Tony <andrewst_at_onetel.net.uk> writes
>"Nick" <nquinnusa_at_earthlink.net> wrote in message
>news:<XC8gc.12319$zj3.10639_at_newsread3.news.atl.earthlink.net>...
>> Ok,
>>
>> Define an Order Header and the Order Items in that table, please.
>
>You know that I know that you know that I would now provide you with 2
>create table statements. And I know that you know that I know that
>you would then say that was a Bad Thing. Etc. etc. etc.
>
>All we need then is for Wol to come along and claim that now I have
>mysteriously "scattered" the 2 entities Order and Order Line across 2
>separate tables, there is no way the DBMS can put them together again!
>
>Perhaps it's best that I just don't bother ;-)

Actually, I wouldn't. I would just ask "how many items of information do you need to access data in the table? The answer is two - row-key and column-name - therefore the table is two-dimensional.

Oh - and the question was "how do you describe a three-dimensional thing". So you chose to represent a point. I'm not sure how many dimensions that has but it ain't three! Nor is it two because that's a line. I suspect it's zero-dimensional.

Hm! You need two dimensions to represent a zero-dimensional object! By my maths that makes you need infinity dimensions in order to represent three! :-)

Cheers,
Wol

-- 
Anthony W. Youngman - wol at thewolery dot demon dot co dot uk
HEX wondered how much he should tell the Wizards. He felt it would not be a
good idea to burden them with too much input. Hex always thought of his reports
as Lies-to-People.
The Science of Discworld : (c) Terry Pratchett 1999
Received on Sat Apr 24 2004 - 06:35:31 CDT

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