Re: Re: Create unique non-autoincrement key for 700,000 records?

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On Wed, 2008-12-17 at 02:03 +0100, Jochem Maas wrote:
>
> or just:
> 
> mysql_query("UPDATE test SET mykey=UUID()");
> 
> can't see any reason to go down the 'loop the dataset and roll your
> own much less random, much more likely to collide, unique value' road.

Not terribly random:

7e55a4d0-1d31-102c-8104-001fd05507bc
7e8e9ed4-1d31-102c-8104-001fd05507bc
7ec56be4-1d31-102c-8104-001fd05507bc
7efbb50a-1d31-102c-8104-001fd05507bc
7f339bf0-1d31-102c-8104-001fd05507bc

But it's about as good as what has already come up :) I haven't come
accross UUID() before. It looks time based to me.

> sometimes less is more (although oddly more is never less ;-)

What about when more is black holes?

Cheers,
Rob.
-- 
http://www.interjinn.com
Application and Templating Framework for PHP


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