Sql 如何以不同的分组方式组合同一表中的两个查询？（甲骨文）

我需要计算一下到达和离开的时间。查询是否准时出发：

SELECT DEPAIRPORT as AIRPORT,
    COUNT(case when A.STATUS = 'Scheduled' and 
    A.ACTUAL_BLOCKOFF is not null then 1 else NULL END) as SCHEDULED,
    COUNT(case when ((A.ACTUAL_BLOCKOFF+ interval '7' hour) - (A.SCHEDULED_DEPDT+ interval '7' hour))*24*60 <= '+000000015 00:00:00.000000000' and 
    A.ACTUAL_BLOCKOFF is not null then 1 else NULL END) as ONTIME
    FROM TABLE A GROUP BY DEPAIRPORT

选择机场作为机场，
计数（当A.STATUS='Scheduled'和
A.按计划，实际_封锁不为空，则为1（否则为空结束），
计数（情况是（（A.实际封锁+间隔'7'小时）-（A.计划封锁+间隔'7'小时））*24*60您可以这样使用：

select 
    max(SCHEDULED) as SCHEDULED,
    max(ONTIME)    as ONTIME,
    max(ARRONTIME) as ARRONTIME
from (select 
      count(case when ... ) over(partition by DEPAIRPORT)     as SCHEDULED,
      count(case when ... ) over(partition by DEPAIRPORT)     as ONTIME,
      count(case when ... ) over(partition by ARRIVALAIRPORT) as ARRONTIME
   from a );

但是我想你的问题还不完整。你还需要一个键来加入不同的航班。
如果没有样本数据和预期的输出，很难说出你到底想要什么。如果你想合并这两个数据集，你可以将它们与

子句一起放入

，然后将它们连接在一起（
LEFT JOIN
或
internal JOIN
基于到达与否情况下所需的输出）

与dep
AS（选择机场作为机场，
计数（大小写）
当a.status='Scheduled'
而a.react_blockoff不为空，则为1
(完)如期,，
计数（大小写）
当（（a.实际封锁+间隔“7”小时）-（
a、 计划深度+间隔“7”小时）*
24 * 
60
你刚刚救了我的命。上面的代码运行得很好，并且产生了我想要的结果。非常感谢。我希望有一天我能给你买杯咖啡。@KaushikNayak@user1725887：不客气。当然，我很乐意。我已经尝试了上面的代码，但没有得到我想要的结果。但是，谢谢。@Alexandr
select 
    max(SCHEDULED) as SCHEDULED,
    max(ONTIME)    as ONTIME,
    max(ARRONTIME) as ARRONTIME
from (select 
      count(case when ... ) over(partition by DEPAIRPORT)     as SCHEDULED,
      count(case when ... ) over(partition by DEPAIRPORT)     as ONTIME,
      count(case when ... ) over(partition by ARRIVALAIRPORT) as ARRONTIME
   from a );

WITH dep 
     AS (SELECT depairport AS airport, 
                count(CASE 
                        WHEN a.status = 'Scheduled' 
                             AND a.actual_blockoff IS NOT NULL THEN 1 
                      END) AS scheduled, 
                count(CASE 
                        WHEN( ( a.actual_blockoff + interval '7' hour ) - ( 
                                    a.scheduled_depdt + interval '7' hour ) ) * 
                            24 * 
                            60 
                            <= 
                                  '+000000015 00:00:00.000000000' 
                            AND a.actual_blockoff IS NOT NULL THEN 1 
                      END) AS ontime 
         FROM   tablea 
         GROUP  BY depairport), 
     arr 
     AS (SELECT arrivalairport AS airport, 
                count(CASE 
                        WHEN( ( a.actual_blockon + interval '7' hour ) - ( 
                                    a.scheduled_arrdt + interval '7' hour ) ) * 
                            24 * 
                            60 
                            <= 
                                  '+000000015 00:00:00.000000000' 
                            AND a.actual_blockon IS NOT NULL THEN 1 
                      END)     AS arrontime 
         FROM   tablea 
         GROUP  BY arrivalairport) 
SELECT dep.airport   AS Name, 
       dep.scheduled AS "#Schedule", 
       dep.ontime    AS "#OnTimeDeparture", 
       arr.arrontime AS "#ArrivalOntime" 
FROM   dep 
       left join arr  -- Or Inner join depending on the expected output.
              ON ( dep.airport = arr.airport );