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Re: Newbie question

From: Alfredo Novoa <alfredo_novoa_at_hotmail.com>
Date: Wed, 22 Jun 2005 13:38:34 +0200
Message-ID: <ldjib15nf7o5p5fsb27vmekl8hdc88r529@4ax.com>


On Wed, 22 Jun 2005 09:15:16 +0200, Jon Heggland <heggland_at_idi.ntnu.no> wrote:

>> If you want a natural key for a person try
>> the exact latitude, longitude, altitude and precise time of their birth.
>
>That is an excellent example of the need for surrogate keys. :)

That's why many countries have national document identification numbers.

Regards Received on Wed Jun 22 2005 - 06:38:34 CDT

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