Excel报表内容，
名称 日期 产量
A 5.25 120
A 5.26 120
A 5.27 120
B 2.25 150
B 2.26 150
B 2.27 150
C 2.25 200
把上表转换为
物品 总量 日期1 日期2 日期3
名称 360 5.25 5.26 5.27
A 360 120 120 120
B 450 150 150 150
C 200 200 空 空
请高手帮看下~！
------解决方案--------------------
示例：
----------------------------------------------------------------
-- Author :fredrickhu(小F，向高手学习)
-- Date :2010-06-03 10:25:21
-- Version:
-- Microsoft SQL Server 2005 - 9.00.4035.00 (Intel X86)
-- Nov 24 2008 13:01:59
-- Copyright (c) 1988-2005 Microsoft Corporation
-- Developer Edition on Windows NT 5.1 (Build 2600: Service Pack 3)
--
----------------------------------------------------------------
--> 测试数据：[tb]
if object_id('[tb]') is not null drop table [tb]
go
create table [tb]([SationID] int,[CurrentTime] datetime,[要素1] int,[要素2] int)
insert [tb]
select 1,'2008-1-2 1:00:00',111,112 union all
select 1,'2008-1-2 2:00:00',121,122 union all
select 2,'2008-1-2 1:00:00',211,212 union all
select 2,'2008-1-2 2:00:00',221,222
--------------开始查询--------------------------
declare @sql varchar(8000)
set @sql = 'select SationID,要素 '
select @sql = @sql + ' , max(case when ltrim(datepart(hh,CurrentTime))=''' + ltrim(datepart(hh,CurrentTime)) + ''' then value else null end) [' + ltrim(datepart(hh,CurrentTime)) + ']'
from (select distinct SationID,CurrentTime,'要素1' 要素,要素1 value from tb union all
select SationID,CurrentTime,'要素2',要素2 from tb ) as a
set @sql = @sql + ' from (select SationID,CurrentTime,''要素1'' as 要素,要素1 value from tb union all
select SationID,CurrentTime,''要素2'',要素2 from tb )t group by SationID,要素'
exec(@sql)
----------------结果----------------------------
/* SationID 要素 1 2 1 2 1 2 1 2
----------- ----- ----------- ----------- ----------- ----------- ----------- ----------- ----------- -----------
1 要素1 111 121 111 121 111 121 111 121
2 要素1 211 221 211 221 211 221 211 221