Duplicate entry '2147483647' for key 1

Question

Strange problem I can\'t seem to get my head around. I have a table in a MySQL database with the following structure...

    CREATE TABLE IF NOT EXISTS `tblb         


        

Answer 1

2^31 − 1 = 2,147,483,647 

The number 2,147,483,647 is ... the maximum value for a 32-bit signed integer in computing