日期:2014-05-17 浏览次数:20558 次
CREATE TABLE test (车型 VARCHAR(10), 年份 VARCHAR(10),月份 VARCHAR(10),数量 INT )
INSERT INTO test
SELECT 'suv', '2003', '6月', 0
UNION ALL
SELECT 'suv', '2003', '7月', 1
UNION ALL
SELECT 'suv', '2003', '8月', 0
UNION ALL
SELECT 'suv', '2003', '9月', 3
UNION ALL
SELECT 'suv', '2003', '10月', 0
UNION ALL
SELECT 'suv', '2003', '11月', 1
UNION ALL
SELECT 'suv', '2003', '12月', 2
UNION ALL
SELECT 'ft', '2003', '6月', 1
UNION ALL
SELECT 'ft', '2003', '7月', 0
UNION ALL
SELECT 'ft', '2003', '8月', 0
UNION ALL
SELECT 'ft', '2003', '9月', 1
UNION ALL
SELECT 'ft', '2003', '10月', 2
UNION ALL
SELECT 'ft', '2003', '11月', 3
UNION ALL
SELECT 'ft', '2003', '12月', 0
UNION ALL
SELECT 'asd', '2004','1月', 2
UNION ALL
SELECT 'asd', '2004', '2月', 1
UNION ALL
SELECT 'asd', '2004', '3月', 0
SELECT 车型,SUBSTRING(年份+CASE WHEN LEN(SUBSTRING(月份,1,CHARINDEX('月',月份,1)))=2 THEN '0'+月份 ELSE 月份 END,
1,LEN(年份+CASE WHEN LEN(SUBSTRING(月份,1,CHARINDEX('月',月份,1)))=2 THEN '0'+月份 ELSE 月份 END)-1) 月份,数量 INTO #t
FROM test
declare @s nvarchar(4000)
set @s=''
Select @s=@s+','+quotename(SUBSTRING(月份,5,2))+'=max(case when [月份]='+quotename(月份,'''')+' then [数量] else 0 end)'
from #t WHERE 月份 BETWEEN '200308' AND '200402' group BY 月份
exec('select [车型]'+@s+' from #t group by [车型]')
/*
车型 08 09 10 11 12 01 02
---------- ----------- ----------- ----------- ----------- ----------- ----------- -----------
asd 0 0 0 0 0 2 1
ft 0 1 2 3 0 0 0
suv 0 3 0 1 2 0 0
(3 行受影响)
*/