--建立测试环境set nocount oncreate table test(model varchar(20),date int ,qty int)insert into test select 'a','8','10'insert into test select 'a','10','50'insert into test select 'b','8','100'insert into test select 'b','9','200'insert into test select 'b','10','100'insert into test select 'c','10','200'insert into test select 'd','10','300'insert into test select 'e','11','250'insert into test select 'e','12','100'insert into test select 'f','12','150'go--测试declare @sql varchar(8000)set @sql='select model,'select @sql=@sql+'sum(case when date='''+cast(date as varchar(10))+''' then qty else 0 end)['+cast(date as varchar(10))+'],'from (select distinct top 100 percent date from test order by date)aset @sql =left(@sql,len(@sql)-1)+' from test group by model'exec(@sql)--删除测试环境drop table test set nocount off/**//*model 8 9 10 11 12-------------------- ----------- ----------- ----------- ----------- -----------a 10 0 50 0 0b 100 200 100 0 0c 0 0 200 0 0d 0 0 300 0 0e 0 0 0 250 100f 0 0 0 0 150*/ |
