Student PID would be my vote. I agree to few comments above that using ID is too generic when connecting with other RDBMS. Also, given that we will have Instructor PID and Employee PID, using Student PID will clearly identify as to who the PID(Personal Identification number) belongs to(student, instructor or employee).
Student PID would be my vote. I agree to few comments above that using ID is too generic when connecting with other RDBMS. Also, given that we will have Instructor PID and Employee PID, using Student PID will clearly identify as to who the PID(Personal Identification number) belongs to(student, instructor or employee).