在MySQL中防止ID字段为0

Question

I'm creating a table with an id field. This is the part of the query which creates the column.

id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,

When I insert data, I just set id to NULL and mysql set a progressive id number for me. How can I prevent this id to be 0? I'm writing my code so that 0 represent an exception: quite a bad coding style but there's nothing I can do to prevent this without rewriting everything.

So, is there any way to tell mysql never to store zero on the id field?

Thanks!

Answer 1

As auto_increment column only increasing numbers get stored in the column starting from 1. So don't worry about it. The DB handles that without any further action needed.

Answer 2

You could set the initial AUTO_INCREMENT value to a positive integer - but I believe it starts with 1 anyway. Just to be sure:

ALTER TABLE table_name_here AUTO_INCREMENT = 1000;