Stewart "Arturius" Campbell (9/20/2013)
In case of doubt, refer to Ralph Kimball's book, "The Data Warehouse Toolkit, 2nd Edition"
Just FYI - Kimball is up to third edition now. I haven't read it (yet), but from the reviews, it appears they've re-worked some of the material a bit and added more real-world examples.
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Just my $0.02 from over here in the cheap seats of the peanut gallery - please adjust for inflation and/or your local currency.