I use md5(microtime());

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Ondrej Kulaty

"Rob Gould" <gould...@mac.com> píse v diskusním príspevku 
news:1492934866135048840337272044147195196-webm...@me.com...
>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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