Question

我遇到了问题

我的查询显示了未来12周内每个资源的总工作量，并且运行良好

SELECT  Tasks.ID, 
        Ressources.Username AS AssignedTo, 
        CONCAT(Year(Tasks.DueDate), 
        '-', 
        Week(Tasks.DueDate)) AS Weeks, 
        SUM(Tasks.ExpectedDuration) AS Durations, 
        Assignments.Completed 
FROM Ressources INNER JOIN Assignments 
ON Assignments.RessID = Ressources.ID 
LEFT OUTER JOIN Tasks ON Assignments.TaskID = Tasks.ID 
WHERE Assignments.Completed = 0 
    AND Tasks.ExpectedDuration <> 0 
    AND Ressources.ID IN (" . $_SESSION['MyColleagues'] . ") 
    AND Tasks.DueDate between NOW() 
    AND DATE_FORMAT(NOW() + INTERVAL 90 DAY,'%Y-%m-01') 
GROUP BY AssignedTo, Week(Tasks.DueDate) 
ORDER BY Weeks;

我需要添加一个名为“相反”的列。

＆＃39;相反＆＃39;是我每周所有资源的可用性，应接近40 - SUM(Tasks.ExpectedDuration)

问题在于，无论何时资源未分配特定周的任务，它都不会显示40，即可用时间。

它根本没有显示该资源的任何内容。

我试图通过LEFT JOIN来解决这个问题，但没有帮助。

这是我到目前为止所尝试的：

SELECT  Tasks.ID, 
        Ressources.Username AS AssignedTo, 
        CONCAT(Year(Tasks.DueDate), 
        '-', 
        Week(Tasks.DueDate)) AS Weeks, 
        **40-SUM(Tasks.ExpectedDuration)** AS Durations, 
        Assignments.Completed 
FROM Ressources **LEFT OUTER JOIN** Assignments 
ON Assignments.RessID = Ressources.ID 
INNER JOIN Tasks on Assignments.TaskID = Tasks.ID 
WHERE Assignments.Completed = 0 
    AND Tasks.ExpectedDuration <> 0 
    AND Ressources.ID IN (" . $_SESSION['MyColleagues'] . ") 
    AND Tasks.DueDate between NOW() 
    AND DATE_FORMAT(NOW() + INTERVAL 90 DAY,'%Y-%m-01') 
GROUP BY AssignedTo, Week(Tasks.DueDate) 
ORDER BY Weeks;

有没有人知道如何解决这个问题？

非常感谢，克里斯

SQL链接到＆＃34;不存在＆＃34;数据

0 个答案: