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>via of two possible logical files depending on the first value. Can you explain the file a little more. W/1.1B rows, you'll need both of the 5 digit fields to uniquely identify a row. Or are you looking at chaining and then reading several rows? In either case, you may want to put all 3 fields into the index. I know SQL will, and I believe native IO will realize that it can get all the information it needs from the index and never look at the physical. -Walden ------------ Walden H Leverich III Tech Software (516) 627-3800 x3051 WaldenL@xxxxxxxxxxxxxxx http://www.TechSoftInc.com Quiquid latine dictum sit altum viditur. (Whatever is said in Latin seems profound.)
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