if object_id('tb') >0
drop table tb
create table [tb]([单位] varchar(1),[品种] varchar(1),[数量] int)
insert [tb]
select 'A','a',1 union all
select 'A','b',2 union all
select 'A','c',3 union all
select 'A','d',4 union all
select 'B','a',11 union all
select 'B','b',12 union all
select 'B','c',13 union all
select 'B','d',14 union all
select 'C','a',21 union all
select 'C','b',22 union all
select 'C','c',23 union all
select 'C','d',24
go
declare @sql varchar(8000)
select
@sql=isnull(@sql+',','')
+'sum(case when 品种='''+品种+''' then 数量 else 0 end) as ['+品种+']'
from
(select distinct 品种 from tb) t
exec('select 单位,'+@sql+' from tb group by 单位')
结果
单位 a b c d
A 1 2 3 4
B 11 12 13 14
C 21 22 23 24
摘自CSDN。