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

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Hi Rob,

You can also use the PHP fonction Uniqid :

md5(uniqid(rand(),true));

http://fr3.php.net/manual/en/function.uniqid.php

Have a nice day.

Zeuf

Rob Gould a écrit :
I have a mySQL database with 700,000 records in it, which are presently keyed with an "auto-increment" field.

What I'd like to do is create another field with a field where each and every record number has a unique keyvalue. Example: "su5e23vlskd" for records 1, and "34fdfdsglkdj4" for record 2. All that matters is that it's unique, and isn't a number that can be guessed or an "autoincrement" number, where a hacker can just figure out the keyvalue by incrementing numbers. It doesn't matter to me if each keyvalue field is just numbers, or a number/letter combination - - - all that matters is that each keyvalue field is unique. Is there an automatic way that mySQL could do that, or would I need to write a php script to somehow go through each record and create this unique value?


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