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

Maybe add a timestamp and sort on that, which actually adds meaning to your data model. A "sort_order" column means you're putting presentation (view) logic into your data model, which is a Bad Thing.