ROLLUP实现的分级汇总示例(带排序及汇总列标题处理)

DECLARE @t TABLE(Groups char(2),Item varchar(10),Color varchar(10),Quantity int)
INSERT @t SELECT 'aa','Table','Blue', 124
UNION ALL SELECT 'bb','Table','Red',  -23
UNION ALL SELECT 'bb','Cup'  ,'Green',-23
UNION ALL SELECT 'aa','Chair','Blue', 101
UNION ALL SELECT 'aa','Chair','Red',  -90

--统计及排序
SELECT Groups=CASE
        WHEN GROUPING(Color)=0 THEN Groups
        WHEN GROUPING(Groups)=1 THEN '总计'
        ELSE '' END,
    Item=CASE
        WHEN GROUPING(Color)=0 THEN Item
        WHEN GROUPING(Item)=1 AND GROUPING(Groups)=0 THEN Groups+' 合计'
        ELSE '' END,
    Color=CASE
        WHEN GROUPING(Color)=0 THEN Color
        WHEN GROUPING(Color)=1 AND GROUPING(Item)=0 THEN Item+' 小计'
        ELSE '' END,
    Quantity=SUM(Quantity)
FROM @t
GROUP BY Groups,Item,Color WITH ROLLUP
ORDER BY GROUPING(Groups),
    CASE WHEN GROUPING(Groups)=1 THEN '' ELSE Groups END DESC,
    GROUPING(Item),
    CASE WHEN GROUPING(Item)=1 THEN '' ELSE Item END DESC,
    GROUPING(Color),
    CASE WHEN GROUPING(Color)=1 THEN '' ELSE Color END DESC,
    Quantity DESC
/*--结果
Groups Item       Color           Quantity    
--------- -------------- ----------------------- -----------
bb     Table      Red             -23
                 Table 小计       -23
bb     Cup       Green           -23
                 Cup 小计        -23
       bb 合计                    -46
aa     Table      Blue            124
                 Table 小计       124
aa     Chair      Red             -90
aa     Chair      Blue            101
                 Chair 小计       11
       aa 合计                    135
总计                              89
--*/