Re: Which Oracle book was this?

From: David Portas <REMOVE_BEFORE_REPLYING_dportas_at_acm.org>
Date: Sat, 25 Oct 2008 00:29:36 +0100
Message-ID: <gdmdnWtTrPn8x5_UnZ2dnUVZ8jednZ2d@giganews.com>


<dba_222_at_yahoo.com> wrote in message
news:bca7bad6-febc-429d-b026-09c2346efb31_at_u65g2000hsc.googlegroups.com...
> Years ago, I skimmed an Oracle book at the bookstore.
> I'm sure it was written by Tom Kyte.
>
> In it, he critiqued a system that would store data in
> rows, instead of simple columns!
> One criticism being that it performed very badly.
>
>
> So, instead of a typical table structure:
>
> field1
> field2
> field3
> field4
>
>
> There was a lookup table with field codes, and what they meant.
>
> Fieldcode_id
> Fieldcode_name
>
>
> The "data" table would be structured:
>
> Fieldcode_id
> value
> etc.
>
> Doing simple queries was of course much more complex.
>
> I remember reading words to the effect:
> "How did it perform? Horribly, pathetically, awfully!"
>
>
> I'm unfortunately dealing with such a system now,
> and would like to show this critique to the brass.
>
>
> Which book can I find this in please?
>
> Thanks a lot!
>
>

See also:
http://tonyandrews.blogspot.com/2004/10/otlt-and-eav-two-big-design-mistakes.html

-- 
David Portas
Received on Fri Oct 24 2008 - 18:29:36 CDT

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