DECLARE @a TABLE([pRQ] DATETIME,[pCX] NVARCHAR(20),[pJE] decimal(18,2),[pSXF] decimal(18,2))
INSERT @a SELECT '2009-07-01 00:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-01 12:22:00','B',456.00,5.00
UNION ALL SELECT '2009-07-01 22:00:00','C',456.00,5.00
UNION ALL SELECT '2009-07-03 00:33:00','B',456.00,5.00
UNION ALL SELECT '2009-07-04 11:00:00','B',456.00,5.00
UNION ALL SELECT '2009-07-05 11:00:33','A',456.00,5.00
UNION ALL SELECT '2009-07-05 00:12:00','B',456.00,5.00
UNION ALL SELECT '2009-07-05 00:12:00','C',456.00,5.00
UNION ALL SELECT '2009-07-06 00:12:00','A',456.00,5.00
UNION ALL SELECT '2009-07-07 00:12:00','B',456.00,5.00
UNION ALL SELECT '2009-07-08 00:31:00','C',456.00,5.00
UNION ALL SELECT '2009-07-09 00:11:00','A',456.00,5.00
UNION ALL SELECT '2009-07-01 00:11:00','B',456.00,5.00
UNION ALL SELECT '2009-07-03 00:11:00','C',456.00,5.00
UNION ALL SELECT '2009-07-05 00:15:00','C',456.00,5.00
UNION ALL SELECT '2009-07-02 11:42:00','C',456.00,5.00
UNION ALL SELECT '2009-07-05 16:13:00','A',456.00,5.00
UNION ALL SELECT '2009-07-06 11:21:00','A',456.00,5.00
UNION ALL SELECT '2009-07-11 21:00:00','C',456.00,5.00
UNION ALL SELECT '2009-07-12 21:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-12 21:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-14 21:00:00','A',456.00,5.00
--SELECT * FROM @a select convert(varchar(10),pRQ,120) as 日期,
sum(case pCX when 'A' then 1 else 0 end) as A车数量,sum(case pCX when 'A' then pJE else 0 end) as A车数量,
sum(case pCX when 'B' then 1 else 0 end) as A车数量,sum(case pCX when 'B' then pJE else 0 end) as A车数量,
sum(case pCX when 'C' then 1 else 0 end) as A车数量,sum(case pCX when 'C' then pJE else 0 end) as A车数量
from @a
group by convert(varchar(10),pRQ,120)
INSERT @a SELECT '2009-07-01 00:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-01 12:22:00','B',456.00,5.00
UNION ALL SELECT '2009-07-01 22:00:00','C',456.00,5.00
UNION ALL SELECT '2009-07-03 00:33:00','B',456.00,5.00
UNION ALL SELECT '2009-07-04 11:00:00','B',456.00,5.00
UNION ALL SELECT '2009-07-05 11:00:33','A',456.00,5.00
UNION ALL SELECT '2009-07-05 00:12:00','B',456.00,5.00
UNION ALL SELECT '2009-07-05 00:12:00','C',456.00,5.00
UNION ALL SELECT '2009-07-06 00:12:00','A',456.00,5.00
UNION ALL SELECT '2009-07-07 00:12:00','B',456.00,5.00
UNION ALL SELECT '2009-07-08 00:31:00','C',456.00,5.00
UNION ALL SELECT '2009-07-09 00:11:00','A',456.00,5.00
UNION ALL SELECT '2009-07-01 00:11:00','B',456.00,5.00
UNION ALL SELECT '2009-07-03 00:11:00','C',456.00,5.00
UNION ALL SELECT '2009-07-05 00:15:00','C',456.00,5.00
UNION ALL SELECT '2009-07-02 11:42:00','C',456.00,5.00
UNION ALL SELECT '2009-07-05 16:13:00','A',456.00,5.00
UNION ALL SELECT '2009-07-06 11:21:00','A',456.00,5.00
UNION ALL SELECT '2009-07-11 21:00:00','C',456.00,5.00
UNION ALL SELECT '2009-07-12 21:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-12 21:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-14 21:00:00','A',456.00,5.00
--SELECT * FROM @a select convert(varchar(10),pRQ,120) as 日期,
sum(case pCX when 'A' then 1 else 0 end) as A车数量,sum(case pCX when 'A' then pJE else 0 end) as A车数量,
sum(case pCX when 'B' then 1 else 0 end) as A车数量,sum(case pCX when 'B' then pJE else 0 end) as A车数量,
sum(case pCX when 'C' then 1 else 0 end) as A车数量,sum(case pCX when 'C' then pJE else 0 end) as A车数量
from @a
group by convert(varchar(10),pRQ,120)
INSERT @a SELECT '2009-07-01 00:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-01 12:22:00','B',456.00,5.00
UNION ALL SELECT '2009-07-01 22:00:00','C',456.00,5.00
UNION ALL SELECT '2009-07-03 00:33:00','B',456.00,5.00
UNION ALL SELECT '2009-07-04 11:00:00','B',456.00,5.00
UNION ALL SELECT '2009-07-05 11:00:33','A',456.00,5.00
UNION ALL SELECT '2009-07-05 00:12:00','B',456.00,5.00
UNION ALL SELECT '2009-07-05 00:12:00','C',456.00,5.00
UNION ALL SELECT '2009-07-06 00:12:00','A',456.00,5.00
UNION ALL SELECT '2009-07-07 00:12:00','B',456.00,5.00
UNION ALL SELECT '2009-07-08 00:31:00','C',456.00,5.00
UNION ALL SELECT '2009-07-09 00:11:00','A',456.00,5.00
UNION ALL SELECT '2009-07-01 00:11:00','B',456.00,5.00
UNION ALL SELECT '2009-07-03 00:11:00','C',456.00,5.00
UNION ALL SELECT '2009-07-05 00:15:00','C',456.00,5.00
UNION ALL SELECT '2009-07-02 11:42:00','C',456.00,5.00
UNION ALL SELECT '2009-07-05 16:13:00','A',456.00,5.00
UNION ALL SELECT '2009-07-06 11:21:00','A',456.00,5.00
UNION ALL SELECT '2009-07-11 21:00:00','C',456.00,5.00
UNION ALL SELECT '2009-07-12 21:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-12 21:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-14 21:00:00','A',456.00,5.00 select 日期=[pRQ],
A车数量=SUM(case when [pCX]='A' then 1 else 0 end),
A车钱数=SUM(case when [pCX]='A'then [pJE]+[pSXF] else 0 end ),
b车数量=SUM(case when [pCX]='b' then 1 else 0 end),
b车钱数=SUM(case when [pCX]='b'then pJE+[pSXF] else 0 end ),
c车数量=SUM(case when [pCX]='c' then 1 else 0 end),
c车钱数=SUM(case when [pCX]='c'then [pJE]+[pSXF] else 0 end )
from @a
group by [pRQ]
/*
2009-07-01 00:00:00.000 1 461.00 0 0.00 0 0.00
2009-07-01 00:11:00.000 0 0.00 1 461.00 0 0.00
2009-07-01 12:22:00.000 0 0.00 1 461.00 0 0.00
2009-07-01 22:00:00.000 0 0.00 0 0.00 1 461.00
2009-07-02 11:42:00.000 0 0.00 0 0.00 1 461.00
2009-07-03 00:11:00.000 0 0.00 0 0.00 1 461.00
2009-07-03 00:33:00.000 0 0.00 1 461.00 0 0.00
2009-07-04 11:00:00.000 0 0.00 1 461.00 0 0.00
2009-07-05 00:12:00.000 0 0.00 1 461.00 1 461.00
2009-07-05 00:15:00.000 0 0.00 0 0.00 1 461.00
2009-07-05 11:00:33.000 1 461.00 0 0.00 0 0.00
2009-07-05 16:13:00.000 1 461.00 0 0.00 0 0.00
2009-07-06 00:12:00.000 1 461.00 0 0.00 0 0.00
2009-07-06 11:21:00.000 1 461.00 0 0.00 0 0.00
2009-07-07 00:12:00.000 0 0.00 1 461.00 0 0.00
2009-07-08 00:31:00.000 0 0.00 0 0.00 1 461.00
2009-07-09 00:11:00.000 1 461.00 0 0.00 0 0.00
2009-07-11 21:00:00.000 0 0.00 0 0.00 1 461.00
2009-07-12 21:00:00.000 2 922.00 0 0.00 0 0.00
2009-07-14 21:00:00.000 1 461.00 0 0.00 0 0.00*/
INSERT @a SELECT '2009-07-01 00:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-01 12:22:00','B',456.00,5.00
UNION ALL SELECT '2009-07-01 22:00:00','C',456.00,5.00
UNION ALL SELECT '2009-07-03 00:33:00','B',456.00,5.00
UNION ALL SELECT '2009-07-04 11:00:00','B',456.00,5.00
UNION ALL SELECT '2009-07-05 11:00:33','A',456.00,5.00
UNION ALL SELECT '2009-07-05 00:12:00','B',456.00,5.00
UNION ALL SELECT '2009-07-05 00:12:00','C',456.00,5.00
UNION ALL SELECT '2009-07-06 00:12:00','A',456.00,5.00
UNION ALL SELECT '2009-07-07 00:12:00','B',456.00,5.00
UNION ALL SELECT '2009-07-08 00:31:00','C',456.00,5.00
UNION ALL SELECT '2009-07-09 00:11:00','A',456.00,5.00
UNION ALL SELECT '2009-07-01 00:11:00','B',456.00,5.00
UNION ALL SELECT '2009-07-03 00:11:00','C',456.00,5.00
UNION ALL SELECT '2009-07-05 00:15:00','C',456.00,5.00
UNION ALL SELECT '2009-07-02 11:42:00','C',456.00,5.00
UNION ALL SELECT '2009-07-05 16:13:00','A',456.00,5.00
UNION ALL SELECT '2009-07-06 11:21:00','A',456.00,5.00
UNION ALL SELECT '2009-07-11 21:00:00','C',456.00,5.00
UNION ALL SELECT '2009-07-12 21:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-12 21:00:00','A',456.00,5.00
UNION ALL SELECT '2009-07-14 21:00:00','A',456.00,5.00 select 日期=convert(varchar(10),pRQ,120),
A车数量=SUM(case when [pCX]='A' then 1 else 0 end),
A车钱数=SUM(case when [pCX]='A'then [pJE]+[pSXF] else 0 end ),
b车数量=SUM(case when [pCX]='b' then 1 else 0 end),
b车钱数=SUM(case when [pCX]='b'then pJE+[pSXF] else 0 end ),
c车数量=SUM(case when [pCX]='c' then 1 else 0 end),
c车钱数=SUM(case when [pCX]='c'then [pJE]+[pSXF] else 0 end )
from @a
group by convert(varchar(10),pRQ,120)
/*
2009-07-01 1 461.00 2 922.00 1 461.00
2009-07-02 0 0.00 0 0.00 1 461.00
2009-07-03 0 0.00 1 461.00 1 461.00
2009-07-04 0 0.00 1 461.00 0 0.00
2009-07-05 2 922.00 1 461.00 2 922.00
2009-07-06 2 922.00 0 0.00 0 0.00
2009-07-07 0 0.00 1 461.00 0 0.00
2009-07-08 0 0.00 0 0.00 1 461.00
2009-07-09 1 461.00 0 0.00 0 0.00
2009-07-11 0 0.00 0 0.00 1 461.00
2009-07-12 2 922.00 0 0.00 0 0.00
2009-07-14 1 461.00 0 0.00 0 0.00*/
标题:普通行列转换(version 2.0)
作者:爱新觉罗.毓华(十八年风雨,守得冰山雪莲花开)
时间:2008-03-09
地点:广东深圳
说明:普通行列转换(version 1.0)仅针对sql server 2000提供静态和动态写法,version 2.0增加sql server 2005的有关写法。问题:假设有张学生成绩表(tb)如下:
姓名 课程 分数
张三 语文 74
张三 数学 83
张三 物理 93
李四 语文 74
李四 数学 84
李四 物理 94
想变成(得到如下结果):
姓名 语文 数学 物理
---- ---- ---- ----
李四 74 84 94
张三 74 83 93
-------------------
*/create table tb(姓名 varchar(10) , 课程 varchar(10) , 分数 int)
insert into tb values('张三' , '语文' , 74)
insert into tb values('张三' , '数学' , 83)
insert into tb values('张三' , '物理' , 93)
insert into tb values('李四' , '语文' , 74)
insert into tb values('李四' , '数学' , 84)
insert into tb values('李四' , '物理' , 94)
go--SQL SERVER 2000 静态SQL,指课程只有语文、数学、物理这三门课程。(以下同)
select 姓名 as 姓名 ,
max(case 课程 when '语文' then 分数 else 0 end) 语文,
max(case 课程 when '数学' then 分数 else 0 end) 数学,
max(case 课程 when '物理' then 分数 else 0 end) 物理
from tb
group by 姓名--SQL SERVER 2000 动态SQL,指课程不止语文、数学、物理这三门课程。(以下同)
declare @sql varchar(8000)
set @sql = 'select 姓名 '
select @sql = @sql + ' , max(case 课程 when ''' + 课程 + ''' then 分数 else 0 end) [' + 课程 + ']'
from (select distinct 课程 from tb) as a
set @sql = @sql + ' from tb group by 姓名'
exec(@sql) --SQL SERVER 2005 静态SQL。
select * from (select * from tb) a pivot (max(分数) for 课程 in (语文,数学,物理)) b--SQL SERVER 2005 动态SQL。
declare @sql varchar(8000)
select @sql = isnull(@sql + '],[' , '') + 课程 from tb group by 课程
set @sql = '[' + @sql + ']'
exec ('select * from (select * from tb) a pivot (max(分数) for 课程 in (' + @sql + ')) b')---------------------------------
sum(case pCX when 'A' then 1 else 0 end) as A车数量,sum(case pCX when 'A' then pJE+[pSXF] else 0 end) as A车数量,
sum(case pCX when 'B' then 1 else 0 end) as A车数量,sum(case pCX when 'B' then pJE+[pSXF] else 0 end) as A车数量,
sum(case pCX when 'C' then 1 else 0 end) as A车数量,sum(case pCX when 'C' then pJE+[pSXF] else 0 end) as A车数量
from @a
group by convert(varchar(10),pRQ,120)
A车数量=sum(case when pCX='A' then 1 else 0 end),
A车钱数=sum(case when pCX='A' then pJE else 0 end),
B车数量=sum(case when pCX='B' then 1 else 0 end),
B车钱数=sum(case when pCX='B' then pJE else 0 end),
C车数量=sum(case when pCX='C' then 1 else 0 end),
C车钱数=sum(case when pCX='C' then pJE else 0 end)
from @a
group by convert(varchar(10),pRQ,120)
A车数量=SUM(case[pCX] when 'A' then 1 else 0 end),
A车钱数=SUM(case[pCX]when 'A'then [pJE]+[pSXF] else 0 end ),
b车数量=SUM(case[pCX]when 'b' then 1 else 0 end),
b车钱数=SUM(case[pCX]when 'b'then pJE+[pSXF] else 0 end ),
c车数量=SUM(case[pCX]when 'c' then 1 else 0 end),
c车钱数=SUM(case[pCX] when'c'then [pJE]+[pSXF] else 0 end )
from tb
group by convert(varchar(10),pRQ,120)