I came here to plug "Developing Time-Oriented Database Applications in SQL", but you already did. Once you start developing systems w/ temporally-oriented sche

I came here to plug "Developing Time-Oriented Database Applications in SQL", but you already did. Once you start developing systems w/ temporally-oriented schemas I find that it's difficult to go back. Queries can be painful (and arguably the functionality should be "baked-in" deeper down in the RDBMs stack), but the functional result is very nice.