How to add a series of string in incrementing id in any table?

Question

I have MySQL Table with an Order table in a DB this table has an auto-incremental id. Up-till now we have general numeric Order-ID likewise 1,2,3,4,5... From now onwards I have

Answer 1

You can't have an auto-increment which is not a numeric field. You will better keep the current auto-incrementing column, and add a new one which you will compute manually according to your rules.

You'll probably want to use the MAX() function to get the latest order and generate the next value: remember to do it within a transaction.

You could create a function or a trigger, to do the insert cleanly for you.