multiple auto increment in mysql

Question

I\'m using php and mysql. I have a table with the id column set to auto increment as the primary key. I\'m trying to add another column called sort_order. The sort_order col

Answer 1

You can leave your sort column equal to NULL by default. The only thing you need is a little smarter query. For instance:

select * 
from something
order by ifnull(sort, id)