COMB

There is something for NHibernate called COMB which makes Guids sequential. The current date/time is embedded as part of the algorithm and as a result the Guids may be been in a sequential order. In simpler database scenarios in which one uses an autoincrementing integer for a table's key column, one may easily look at the rows in the table and tell which one was made first, which one was made second, etc. COMB allows for as much in the Guid world.