Just in general: your employee ID is likely a 'number', but it's not a number, it's a unique series of digits.... You don't add employee IDs. You don't multipl

Just in general: your employee ID is likely a 'number', but it's not a number, it's a unique series of digits.... You don't add employee IDs. You don't multiply them by the current month. You don't group employees in ID based sets, find the ID modulus, and do things. They're not numbers, they are an alphanumeric series that should be unique. And after seeing a hundred systems break when IDs started to overflow the 32 bit max, or struggle to handle a change to guids, or alphanumeric security codes, or a harmonization with another systems IDs, or freak out when their numbers get exposed through a URL and it turns out keeping leading-0 formatting has something to say: ... use a damned string. "00123" and 123 are different. Just use a string.