On Nov 13, 2006, at 2:34 PM, Vince Teachout wrote:
> I often have the need to select all records from a file where 3 (to
> make
> it easy) fields are the same as 3 fields in another file. I do it
> like so:
>
> Select * from fileA where store_no+slsper+division in (Select
> store_no+slsper+division from fileB)
>
> I KNOW that's not right, but what is the correct syntax? Thanks.
SELECT * FROM FileA ;
JOIN FileB ON FileA.store_no + FileA.slsper + FileA.division = ;
FileB.store_no + FileB.slsper + FileB.division
There's nothing wrong with your syntax, although with large tables
it may be a lot slower.
-- Ed Leafe
-- http://leafe.com
-- http://dabodev.com
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