Got a question for you old timers,, oops; sorry, i mean more experienced sqler's
 
 When would be the proper implemation to use the ....compute ?
 
FROM BOOKS ONLINE:: 
        USE pubs
GO
-- Row aggregates
SELECT type, price, advance
FROM titles
WHERE type LIKE '%cook'
ORDER BY type
COMPUTE SUM(price), SUM(advance) BY type
Thanks,
Erik....