PIVOT操作

Question

name  roll     vote total vote  status 

aaa  Administrator    1 2   Feedback Received 
aaa  HR Support Staff   1 2   Feedback Received 
dev  Administrator    1 2   Shortlisted 
dev  HR Support Staff   1 2   Shortlisted 
raj  Administrator    1 1   Feedback Received 
rajesh HR Support Staff   2 2   Shortlisted 

需要显示像

Name  HR Support Staff  Administrator Total Vote  Status 

aaa   1     1    2   Feedback Recived 

如何以这种方式显示？

Answer 1

这将是一个PIVOT方法是：

select [name], [Administrator], [HR Support Staff], [total vote], [status] 
from Table1 
pivot (
    min([vote]) 
    for [roll] in ([Administrator], [HR Support Staff]) 
) p 

Working SqlFiddle

Answer 2

这里的细节很稀少。你可以使用PIVOT或者你可以做一个交叉表。如果这些值是静态的，那么使用交叉表可以做到这一点。

select name 
    , SUM(case when roll = 'HR Support Staff' then 1 end) as HRSupportStaff 
    , SUM(case when roll = 'Administrator' then 1 end) as Administrator 
    , MAX(TotalVote) as TotalVote 
    , Status 
from YourTable 
group by name, Status