SQL Server语句输出

Question

我有以下表结构

TicketID    Status  Duration
-----------------------------
1234           8        2
1233           8       10
1232           4        5
1231           8       12
1230           4       50

• 状态8表示已关闭
• 状态4表示打开

需要以下列方式输出。请只做那些需要的。如果可能的话，我想在单个SQL查询中使用它。

请帮我按以下方式输出。

Status  Closed (sum)    Open(Sum)
---------------------------------
   8       24              0
   4        0             55

Answer 1

case表达式可以过滤掉不需要的值，因此可以在单个聚合查询中完成：

SELECT   status, 
         SUM (CASE status WHEN 8 THEN duration ELSE 0 END) AS closed_sum,
         SUM (CASE status WHEN 4 THEN duration ELSE 0 END) AS open_sum
FROM     my_table
GROUP BY status

Answer 2

select status
       , sum( case when status = 4 then Duration else 0 end ) as [Open(sum)]
       , sum( case when status = 8 then Duration else 0 end ) as [Closed(sum)]
from @test
group by status
order by status desc

Answer 3

WITH T AS (SELECT Status, SUM(Duration) AS Duration FROM Table1 GROUP BY Status)
SELECT Status, Duration, 0 FROM T WHERE Status = 8
UNION ALL
SELECT Status, 0, Duration FROM T WHERE Status = 4

Answer 4

使用union all

    SELECT [Status],sum([Duration]) [Closed(sum)], '0' as   [Open(Sum)]
             from [dbo].[tblx] 
             where [Status]=8
             GROUP BY [Status] 


UNION all            
              SELECT [Status], '0' as [Closed(sum)],sum([Duration]) [Close(sum)]
             from [dbo].[tblx] 
             WHERE [Status]=4
             GROUP BY [Status]