When I see examples of creating tables in MySQL, i often see Primary Key used. So i had no idea what it was and researced it...but found nothing out.
then that is queried to the MySQL database. My question is, what does that Primary Key (ID) thing do? All i know is that it increases the ID value each time the Insert query is called. I think. Can someone please explain it for me?
$sql = "create table IF NOT EXISTS Forum
Primary Key (ID)
Thanks in advance.
P.S. - I'm not sure if i wrote that code right either.