It occurs to me that I wasn't clear enough when I posted my question. I might want to use RBase as a front-end to a SQL Server database. IE: no RBase database involved. Do I need to have a shell RBase database and SAttach every single SQL Server table? There could be hundreds of them! I'm assuming I would have to do that only once, though, and keep them always sattached (any problem with that?). No other way to front-end another database without going thru the SAttach?
I found out that SS 2008 has separate date and time fields. Hurray. Karen

