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请教各位高手，转换出错...

bdx808 2010-02-24 03:42:24

各位，新年好！
原表如下：
XH CJX CJ
012345678901 X100 88.00
012345678901 Y200 45.00
012345678901 Z500 106.05
012345678902 X100 100.00
012345678902 Z300 90.00
....

想把上表中的数据换成如下(里面不能有null，CJX有很多的)：
xh X100 Y200 Z300 Z500
012345678901 88.00 45.00 106.05
012345678902 100.00 90.00

用如下行列转换代码为什么错误？
IF object_id('tb') is not null
DROP TABLE tb
go
create table tb(xh char(12) ,cjx char(10), cj numeric(6,2))
insert into tb values ('012345678901','X100',88.00)
insert into tb values ('012345678901','Y200',45.00)
insert into tb values ('012345678901','Z500',106.05)
insert into tb values ('012345678902','X100',100.00)
insert into tb values ('012345678902','Z300',90.00)
-- select * from tb

declare @sql varchar(8000)
set @sql=''
select @sql=@sql+',max(case when cjx='''+cjx+''' then cj else '''' end) as '+cjx
from tb
group by cjx

select @sql='select xh'+@sql+' into Temp from tb group by xh'
exec(@sql)
-- select * from Temp
提示：从数据类型 varchar 转换为 numeric 时出错。

...全文

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5 条回复

切换为时间正序

当前发帖距今超过3年，不再开放新的回复

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bdx808 2010-02-24

多谢各位！结贴。回复内容太短了！

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东那个升 2010-02-24

可否顶一下？

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快乐_石头 2010-02-24

--try

declare @sql varchar(8000) 

set @sql='' 

select @sql=@sql+',max(case when cjx='''+cjx+''' then cast(cj as varchar(10)) else '''' end) as '+cjx 

from tb 

group by cjx 



select  @sql='select xh'+@sql+' into Temp  from tb group by xh' 

exec(@sql)

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ws_hgo 2010-02-24

create table tb1(xh  char(12) ,cjx char(10), cj numeric(6,2)) 

insert into tb1 values ('012345678901','X100',88.00) 

insert into tb1  values ('012345678901','Y200',45.00) 

insert into tb1  values ('012345678901','Z500',106.05) 

insert into tb1 values ('012345678902','X100',100.00) 

insert into tb1  values ('012345678902','Z300',90.00) 

-- select * from tb 



declare @sql varchar(8000) 

set @sql='' 

select @sql=@sql+',max(case when cjx='''+cjx+''' then ltrim(cj) else '''' end) as '+cjx 

from tb1 

group by cjx 

select  @sql='select xh'+@sql+' into Temp1  from tb1 group by xh' 

exec(@sql) 



select * from Temp1

xh           X100                                      Y200                                      Z300                                      Z500

------------ ----------------------------------------- ----------------------------------------- ----------------------------------------- -----------------------------------------

012345678901 88.00                                     45.00                                                                               106.05

012345678902 100.00                                                                              90.00                                     



(2 行受影响)

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百年树人 2010-02-24

declare @sql varchar(8000)

set @sql=''

select @sql=@sql+',max(case when cjx='''+cjx+''' then ltrim(cj) else '''' end) as '+cjx

from tb

group by cjx



select  @sql='select xh'+@sql+' into Temp  from tb group by xh'

exec(@sql)

-- select * from Temp 

/**

xh           X100                                     Y200                                     Z300                                     Z500                                     

------------ ---------------------------------------- ---------------------------------------- ---------------------------------------- ---------------------------------------- 

012345678901 88.00                                    45.00                                                                             106.05

012345678902 100.00                                                                            90.00                                    



（所影响的行数为 2 行）

**/

drop table temp