That's what (N)Hibernate calls the hilo algorithm. Compared with GUIDs, it has the advantage that IDs are somewhat sequential. (Random keys are terrible for ind

That's what (N)Hibernate calls the hilo algorithm. Compared with GUIDs, it has the advantage that IDs are somewhat sequential. (Random keys are terrible for index fragmentation.) http://stackoverflow.com/questions/282099/whats-the-hi-lo-algorithm http://stackoverflow.com/questions/282099/whats-the-hi-lo-al...