Databases don't work quite like that with integers. You can specify a max integer size, sure, but in terms of actual physical memory it's actually based on the size of the number as data, like the actual bits and bytes needed to store the integer value. It's why caps on money and other things in games can be some weird value like 124,546 or whatever (214,748 for a 32-bit integer value), because that's the highest integer value for the column size. So don't think of it as how many digits are in the number, but how much memory the number physically occupies - ie it's restricted by "100kb" and not "2 digits" for example.