如何有一個行多列，而不是多行

Question

，我有以下數據：

在SQL Server中我如何通過weekdate所以我會爲每個weekdate只有一排有小組，例如對於weekdate2015年11月14日：

任何線索？

Answer 1

使用條件聚合。

select cast(weekdate as date), 
sum(case when permittype = 0 then total else 0 end) as permittype0, 
sum(case when permittype = 1 then total else 0 end) as permittype1 
from tablename 
group by cast(weekdate as date) 

Answer 2

我會做這個使用條件彙總：

select weekdate, 
     sum(case when permittype = 0 then total else 0 end) as permitttype0, 
     sum(case when permittype = 1 then total else 0 end) as permitttype1 
from followingdata t 
group by weekdate 
order by weekdate; 

您還可以使用pivot語法，如果你喜歡。