数据库行转列的算法

数据库行转列的算法

--各合作机构自年初以来每周报告数量

 

select  b.f0010 jg,datepart(ww,a.creat_tm) zc,count(*) cnt into #t

 

from RPT_D_BSC a,RPT_R_ORG b

 

where b.f0040='4' and a.creat_tm>'2007-01-01' and a.org_cl=b.org_cl

 

group by b.f0010,datepart(ww,a.creat_tm)

 

order by b.f0010,datepart(ww,a.creat_tm)

 

declare @sql varchar(8000)

 

set @sql = 'select jg as ' + '姓名'

 

select @sql = @sql + ', isnull(sum(case zc when ''' + cast(zc as varchar(2)) + ''' then cnt end),0) [' + cast(zc as varchar(2)) + ']'

from (select distinct zc from #t) as a

order by zc

set @sql = @sql + 'from #t group by jg order by jg'

--print @sql 

exec(@sql)