Hi, I'm just wondering if anyone on this list using some type of UID/UUID/GUID in any of the DB? If so, what DBMS/RDBMS are you using and how many rows do you have for the table(s) using it? What data type are you using for that column? TIA, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php