Question

我有一个用户想要报告中的汇总数据。我可以使用两个单独的SQL查询来获取正确的数据，它们如下。

SELECT JH.ProjectID, SUM(EstProdHours) AS EstProdHrs, SUM(ActProdHours) 
AS ActProdHrs
FROM JobOper AS JO INNER JOIN JobHead AS JH ON JO.Company = JH.Company AND 
JO.JobNum = JH.JobNum WHERE JH.ProjectID <> ''
GROUP BY JH.ProjectID ORDER BY JH.ProjectID

SELECT JH.ProjectID, SUM(EstProdHours) + SUM(EstSetHours) AS Earned  
FROM JobOper AS JO INNER JOIN JobHead AS JH ON JO.Company = JH.Company AND 
JO.JobNum = JH.JobNum WHERE JH.ProjectID <> '' AND OpComplete = 1
GROUP BY JH.ProjectID ORDER BY JH.ProjectID

这两个单独的查询自行提供正确的数据。但是，我的目标是使用这两个查询的结果以及如下所示的结果来设置一个SQL视图：

ProjectID   EstProdHrs  ActProdHrs   Earned
6000        480.00      1640.59      477
6001        621.00      2431.04      619
6002        6687.97     23234.23     6695.47
6003        414.97      4731.47      416.72
6004        208.00      2196.52      206.00
6005        2.00        76.77        NULL <--- This would show up if no completed ops in 2nd select statement
6006        20.83       819.29       18.83

我试图内部连接这两个查询，但我似乎无法避免出现“语法错误”。这是该语句：

SELECT * FROM

(SELECT JH.ProjectID, SUM(EstProdHours) AS EstProdHrs, SUM(ActProdHours) AS 
ActProdHrs,'N/A' AS ValueMissingTableB 

FROM JobOper AS JO INNER JOIN JobHead AS JH ON JO.Company = JH.Company AND 
JO.JobNum = JH.JobNum WHERE JH.ProjectID <> ''

) AS 1

INNER JOIN 

(SELECT JH2.ProjectID, SUM(EstProdHours) + SUM(EstSetHours) AS Earned

FROM JobOper AS JO2 INNER JOIN JobHead AS JH2 ON JO2.Company = JH2.Company 
AND JO2.JobNum = JH2.JobNum WHERE JH2.ProjectID <> '' AND OpComplete = 1

) AS 2

ON 1.ProjectID = 2.ProjectID

我也尝试了UNION和UNION ALL，但失败了，因为两个查询没有相同数量的记录。我希望我在这里犯了一个菜鸟错误，可以做到这一点。感谢您的任何见识。

Answer 1

尝试一下：

WITH A AS (SELECT JH.ProjectID, SUM(EstProdHours) AS EstProdHrs, SUM(ActProdHours) AS 
    ActProdHrs,'N/A' AS ValueMissingTableB 

    FROM JobOper AS JO INNER JOIN JobHead AS JH ON JO.Company = JH.Company AND 
    JO.JobNum = JH.JobNum WHERE JH.ProjectID <> ''
    GROUP BY JH.ProjectID ORDER BY JH.ProjectID
    ), 

     B AS 

    (SELECT JH2.ProjectID, SUM(EstProdHours) + SUM(EstSetHours) AS Earned

    FROM JobOper AS JO2 INNER JOIN JobHead AS JH2 ON JO2.Company = JH2.Company 
    AND JO2.JobNum = JH2.JobNum WHERE JH2.ProjectID <> '' AND OpComplete = 1
    GROUP BY JH2.ProjectID ORDER BY JH2.ProjectID
    ) 

    SELECT * FROM A
    JOIN B ON A.ProjectID = B.ProjectID

Answer 2

我没有您的表可以对此进行测试，但是您不能直接进行左联接；

SELECT A.ProjectID,A.EstProdHrs, A.ActProdHrs, E.Earned
FROM (

        SELECT JH.ProjectID, SUM(EstProdHours) AS EstProdHrs, SUM(ActProdHours) AS ActProdHrs
        FROM JobOper AS JO INNER JOIN JobHead AS JH ON JO.Company = JH.Company AND 
        JO.JobNum = JH.JobNum WHERE JH.ProjectID <> ''
        GROUP BY JH.ProjectID 
) A
LEFT JOIN (
            SELECT JH.ProjectID, SUM(EstProdHours) + SUM(EstSetHours) AS Earned  
            FROM JobOper AS JO INNER JOIN JobHead AS JH ON JO.Company = JH.Company AND 
            JO.JobNum = JH.JobNum WHERE JH.ProjectID <> '' AND OpComplete = 1
            GROUP BY JH.ProjectID 
            ) E
        ON A.ProjectID=E.ProjectID
ORDER BY A.ProjectID

将两个SQL Server查询合并到一个数据集中

2 个答案: