here is my situation:

i have a prepay online store and i advertised a contest to win a free code when buying at least 5 codes during 24.11-24.12 2008 period.

now this is my table:

orders_id...

hello!

i'm implementing an e-commerce system to distribute key codes.

right now i'm thinking of a sql syntax to do the following:

i have a table: orders

here i have the orders_id field...