如何将两个不同的查询组合成不同的输出到一个输出

Question

我是新来的SQL查询，并且已经被抛入了深层！

我有两个需要合并在一起的查询。一个执行三个计算（总和为WGHours，计为WGCount，总和/计数为WGAvg）并将输出分为2列：工作组和优先级。其他执行相同的计算（PHours，PCOunt，PAVG而是由一列仅基 - 优先这是这样我就可以找到针对每个优先级的总图中，所以我可以最后划分WGAvg/PAVG以产生一个％。

我可以单独创建两个查询，但需要将两者的输出合并在一起，以便我可以在一个表中使用它们。我试过UNION ALL，但它不会生成我需要的输出，这是：

WORK_GROUP, PRIORITY, WGHOURS, WGCount, WGAvg, PHours, PCount, PAvg 

任何想法我如何做到这一点？我试过使用一个解决办法，我在这里找到，但得到的Oracle错误，告诉我该命令没有正确地结束：

SELECT One.OPriority, 
     WorkGroup, 
     AverageHours, 
     WoCount, 
     Divis 
FROM (Select CORVU.MSV620.ORIG_PRIORITY as OPriority, 
      CORVU.MSV620.WORK_GROUP as WorkGroup, 
      SUM(CORVU.MSV621.ACT_LAB_HRS) AS AverageHours, 
      COUNT(CORVU.MSV621.WORK_ORDER) AS WoCount, 
      CAST(SUM(CORVU.MSV621.ACT_LAB_HRS)/COUNT(CORVU.MSV621.WORK_ORDER) AS DECIMAL (38, 2)) AS Divis 
    FROM CORVU.MSV620, CORVU.MSV621 
    WHERE CORVU.MSV620.WORK_ORDER = CORVU.MSV621.WORK_ORDER 
    GROUP BY CORVU.MSV620.ORIG_PRIORITY, CORVU.MSV620.WORK_GROUP) AS one 
JOIN (
     SELECT CORVU.MSV620.ORIG_PRIORITY as OPriority, 
     CAST(SUM(CORVU.MSV621.ACT_LAB_HRS)/COUNT(CORVU.MSV621.WORK_ORDER) AS DECIMAL (38, 2)) AS DivisOP 
     FROM  CORVU.MSV620, CORVU.MSV621 
     WHERE CORVU.MSV620.WORK_ORDER = CORVU.MSV621.WORK_ORDER AND (CORVU.MSV620.WORK_GROUP IN ('ENGA01', 'ENGA02', 'ENGA04', 'ENGA05', 'ENGA06', 
      'ENGA08')) AND (CORVU.MSV620.ACCOUNT_CODE LIKE '%B01%') AND (CORVU.MSV621.ACT_LAB_HRS > 0) AND (NOT (CORVU.MSV620.STD_JOB_NO IN ('ELE995', 
      'MEC995', 'ICA995'))) AND (CORVU.MSV620.ORIG_PRIORITY IN ('CH', 'CS', 'T0', 'T1', 'T2', 'T3', 'T4')) AND 
      (CORVU.MSV620.CLOSED_DT >= TO_CHAR(ADD_MONTHS(TRUNC(SYSDATE, 'MONTH'), - 1), 'yyyymmdd')) AND 
      (CORVU.MSV620.CLOSED_DT <= TO_CHAR(ADD_MONTHS(TRUNC(SYSDATE + 30, 'MONTH') - 1, - 1), 'yyyymmdd')) 
     GROUP BY CORVU.MSV620.ORIG_PRIORITY) as two 
WHERE  one.CORVU.MSV620.ORIG_PRIORITY = two.CORVU.MSV620.ORIG_PRIORITY;   

Answer 1

尝试使用第二查询作为一个字段使用（子）选择，就像这样：

select a.name, a.address, sum(a.xxx), 
(select avg(b.amount) from costs b where b.id=a.id) 
from clients a 
where ... ; 

Answer 2

在您的查询中，您正在使用join。这然后期望on子句而不是where子句。这可能会解决您的问题：

SELECT One.OPriority, 
     WorkGroup, 
     AverageHours, 
     WoCount, 
     Divis 
FROM (Select CORVU.MSV620.ORIG_PRIORITY as OPriority, 
      CORVU.MSV620.WORK_GROUP as WorkGroup, 
      SUM(CORVU.MSV621.ACT_LAB_HRS) AS AverageHours, 
      COUNT(CORVU.MSV621.WORK_ORDER) AS WoCount, 
      CAST(SUM(CORVU.MSV621.ACT_LAB_HRS)/COUNT(CORVU.MSV621.WORK_ORDER) AS DECIMAL (38, 2)) AS Divis 
    FROM CORVU.MSV620, CORVU.MSV621 
    WHERE CORVU.MSV620.WORK_ORDER = CORVU.MSV621.WORK_ORDER 
    GROUP BY CORVU.MSV620.ORIG_PRIORITY, CORVU.MSV620.WORK_GROUP) one 
------------------------------------------------------------------^ 
JOIN (
     SELECT CORVU.MSV620.ORIG_PRIORITY as OPriority, 
     CAST(SUM(CORVU.MSV621.ACT_LAB_HRS)/COUNT(CORVU.MSV621.WORK_ORDER) AS DECIMAL (38, 2)) AS DivisOP 
     FROM  CORVU.MSV620, CORVU.MSV621 
     WHERE CORVU.MSV620.WORK_ORDER = CORVU.MSV621.WORK_ORDER AND (CORVU.MSV620.WORK_GROUP IN ('ENGA01', 'ENGA02', 'ENGA04', 'ENGA05', 'ENGA06', 
      'ENGA08')) AND (CORVU.MSV620.ACCOUNT_CODE LIKE '%B01%') AND (CORVU.MSV621.ACT_LAB_HRS > 0) AND (NOT (CORVU.MSV620.STD_JOB_NO IN ('ELE995', 
      'MEC995', 'ICA995'))) AND (CORVU.MSV620.ORIG_PRIORITY IN ('CH', 'CS', 'T0', 'T1', 'T2', 'T3', 'T4')) AND 
      (CORVU.MSV620.CLOSED_DT >= TO_CHAR(ADD_MONTHS(TRUNC(SYSDATE, 'MONTH'), - 1), 'yyyymmdd')) AND 
      (CORVU.MSV620.CLOSED_DT <= TO_CHAR(ADD_MONTHS(TRUNC(SYSDATE + 30, 'MONTH') - 1, - 1), 'yyyymmdd')) 
     GROUP BY CORVU.MSV620.ORIG_PRIORITY) two 
---------------------------------------------^ 
     on one.CORVU.MSV620.ORIG_PRIORITY = two.CORVU.MSV620.ORIG_PRIORITY; 
------^ was WHERE 

编辑：

我也去掉了as（因为你已经在注释中说明）。 Oracle不允许as用于表别名。