Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> comp.databases.theory -> Re: Newbie question

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












Original text of this message













  HOME |
  ASK QUESTION |
  ADD INFO |
  SEARCH |
  E-MAIL US