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 add prefixes directly to the database. However, when selecting it you can prepend it.

SELECT concat('A', id) as id FROM table

To get the effect of starting from 20000 you can set the auto increment starting value.