DECLARE @t TABLE(Item varchar(10),Color varchar(10),Quantity int)
INSERT @t SELECT 'Table','Blue',124
UNION ALL SELECT 'Table','Red', -23
UNION ALL SELECT 'Chair','Blue',101
UNION ALL SELECT 'Chair','Red', -90

--統(tǒng)計(jì)
SELECT Item,Color,Quantity=SUM(Quantity)
FROM @t
GROUP BY Item,Color WITH ROLLUP
/*--結(jié)果
Item       Color      Quantity    
---------- ---------- ----------- 
Chair      Blue       101
Chair      Red        -90
Chair      NULL     11
Table      Blue       124
Table      Red        -23
Table      NULL      101
NULL     NULL      112
--*/