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

On Mon, Dec 15, 2008 at 9:29 PM, Rob Gould <gouldimg@mac.com> wrote: > 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? > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > update mytable set hash_field = md5(AutoIdField + unix_timestamp()) -- Bastien Cat, the other other white meat