jonny5

Thank you for ur quick response ;) and what about this: <?php //call query to add 1 to some field //call query to substract 1 to same field ?> User 1 requests User 2 requests can this happen: u1 add u2 add u1 sub u2sub or u1 add u2 add u2sub u1 sub this can cause inconsistance if you are not using increment or decrement but getting values, changing them and then putting them so are those queries in 1 php page 1 thing? cause i'm still not getting that part :) thanks!

I can't seem to find any good documented stuff about this: When a user calls a php page, and another user calls the same can this result in database inconsistency? which part of query's are executed atomically: none? just 1 query? 1 php page? please help me on this one? thanks!!! Jonny ;)