SQL Server：选择子查询结果的总和，ConnectWise数据库

Question

我有一个查询，我正在运行查找特定团队在过去一个月中输入的ConnectWise时间条目。我想要做的是修改下面的查询，以包含每张票只有一个结果，但只有当datediff(s, time_start, time_end)结果超过1800时。我试过的所有错误都出来了，所以我的唯一MWE是以下查询：

SELECT 
    service.SR_Service_RecID AS "Ticket #", 
    te.Date_Start AS "Time Entry Day", 
    m.first_name AS First, 
    m.last_name AS Last, 
    DATEDIFF(s, te.time_start, te.time_end) AS "Time (s)" 
FROM 
    dbo.Time_Entry te 
LEFT JOIN 
    dbo.Activity_Class activity ON activity.Activity_Class_RecID = te.Activity_Class_RecID 
LEFT JOIN 
    dbo.SR_Service service ON te.SR_Service_RecID = service.SR_Service_RecID 
LEFT JOIN 
    dbo.Member m ON m.Member_RecID = te.Member_RecID 
LEFT JOIN 
    dbo.SR_Team_Mbr member ON member.Member_RecID = M.Member_RecID 
LEFT JOIN 
    dbo.SR_Team T ON T.SR_Team_RecID = member.SR_Team_RecID 
WHERE 
    m.member_recID IN (SELECT M.Member_RecID 
         FROM Member M 
         LEFT JOIN dbo.SR_Team_Mbr member ON member.Member_RecID = M.Member_RecID 
         LEFT JOIN dbo.SR_Team T ON T.SR_Team_RecID = member.SR_Team_RecID 
         WHERE T.Description LIKE '%c' 
          OR T.Description LIKE '%d' 
          OR T.Description LIKE '%e') 
    AND activity.Description LIKE 'T%' 
    AND service.Date_Entered >= DATEADD(MONTH, -1, GETDATE()) 
GROUP BY 
    service.SR_Service_RecID, te.Time_RecID, te.Date_Start, 
    m.first_name, m.last_name, 
    DATEDIFF(s, te.time_start, te.time_end) 
ORDER BY 
    service.SR_Service_RecID DESC 

主要生产：

Ticket # Time Entry Day   First Last Time(s) 
756065  2016-09-28 00:00:00.000 Mr.  Smith 1,000 
756065  2016-09-28 00:00:00.000 Mr.  Smith 560 

我在寻找：

Ticket # Time Entry Day   First Last Time(s) 
756065  2016-09-28 00:00:00.000 Mr.  Smith 1,560 

我试图使之成为一个子查询的一部分，我想我的问题是我无法包装我的头找出我需要做的事情以获得我需要的结果。

任何帮助，非常感谢。

Answer 1

有两件事情是，在你的查询是不正确的：

1. 你没有在你的SELECT语句中的聚合函数。
2. 你在你的group by有Time (s)列导致附加行

因此，改变你的查询，如下纠正这两个问题：

SELECT 
    service.SR_Service_RecID AS "Ticket #", 
    te.Date_Start AS "Time Entry Day", 
    m.first_name AS First, 
    m.last_name AS Last, 
    SUM(DATEDIFF(s, te.time_start, te.time_end)) AS "Time (s)" 
FROM 
    dbo.Time_Entry te 
LEFT JOIN 
    dbo.Activity_Class activity ON activity.Activity_Class_RecID = te.Activity_Class_RecID 
LEFT JOIN 
    dbo.SR_Service service ON te.SR_Service_RecID = service.SR_Service_RecID 
LEFT JOIN 
    dbo.Member m ON m.Member_RecID = te.Member_RecID 
LEFT JOIN 
    dbo.SR_Team_Mbr member ON member.Member_RecID = M.Member_RecID 
LEFT JOIN 
    dbo.SR_Team T ON T.SR_Team_RecID = member.SR_Team_RecID 
WHERE 
    m.member_recID IN (SELECT M.Member_RecID 
         FROM Member M 
         LEFT JOIN dbo.SR_Team_Mbr member ON member.Member_RecID = M.Member_RecID 
         LEFT JOIN dbo.SR_Team T ON T.SR_Team_RecID = member.SR_Team_RecID 
         WHERE T.Description LIKE '%c' 
          OR T.Description LIKE '%d' 
          OR T.Description LIKE '%e') 
    AND activity.Description LIKE 'T%' 
    AND service.Date_Entered >= DATEADD(MONTH, -1, GETDATE()) 
GROUP BY 
    service.SR_Service_RecID, te.Date_Start, 
    m.first_name, m.last_name 
ORDER BY 
    service.SR_Service_RecID DESC 

这MSDN article应该给你一个完整的洞察GROUP BY。

Answer 2

问题在于您加入SR_Team和SR_Team_Member表。一个会员可以在多个团队中。看起来您正试图检查会员是否在特定的团队中。

你提到你想要每张票有一行，但一个成员可以有多个时间入场每张票有相同的时间。所以在某些情况下，您将获得每张票的多行。

如果您希望条目的所有成员的SUM超过1800秒，那么您需要SUM DATEDIFF（），使用GROUP BY，从WHERE子句中删除DATEDIFF（）> 1800并在GROUP BY之后添加HAVING子句。

此查询将让你的任何个人时间条目>1800秒

SELECT 
    service.SR_Service_RecID AS "Ticket #", 
    convert(date,te.Date_Start) AS "Time Entry Day", 
    m.first_name AS First, 
    m.last_name AS Last, 
    DATEDIFF(s, te.time_start, te.time_end) AS "Time (s)" 
FROM 
    dbo.Time_Entry te 
INNER JOIN dbo.Activity_Class activity ON activity.Activity_Class_RecID = te.Activity_Class_RecID 
INNER JOIN dbo.SR_Service service ON te.SR_Service_RecID = service.SR_Service_RecID 
INNER JOIN dbo.Member m ON m.Member_RecID = te.Member_RecID 
WHERE datediff(s,te.time_start, te.time_end) > 1800 
AND activity.Description like 'T%' 
AND service.Date_Entered >= dateadd(month, -1, getdate()) 
AND EXISTS (select * 
      from dbo.SR_Team_Mbr tm 
      inner join dbo.SR_Team t on tm.SR_Team_RecID = t.SR_Team_RecID and tm.Member_RecID = m.Member_RecID 
      where (t.Description like '%c' or t.Description like '%d' or t.Description like '%e')) 
ORDER BY service.SR_Service_RecID desc 

此查询将让你门票，所有的时间项的总和上一票时间> 1800秒的成员

SELECT 
    service.SR_Service_RecID AS "Ticket #", 
    convert(date,te.Date_Start) AS "Time Entry Day", 
    m.first_name AS First, 
    m.last_name AS Last, 
    SUM(DATEDIFF(s, te.time_start, te.time_end))AS "Time (s)" 
FROM 
    dbo.Time_Entry te 
INNER JOIN dbo.Activity_Class activity ON activity.Activity_Class_RecID = te.Activity_Class_RecID 
INNER JOIN dbo.SR_Service service ON te.SR_Service_RecID = service.SR_Service_RecID 
INNER JOIN dbo.Member m ON m.Member_RecID = te.Member_RecID 
WHERE activity.Description like 'T%' 
AND service.Date_Entered >= dateadd(month, -1, getdate()) 
AND EXISTS (select * 
      from dbo.SR_Team_Mbr tm 
      inner join dbo.SR_Team t on tm.SR_Team_RecID = t.SR_Team_RecID and tm.Member_RecID = m.Member_RecID 
      where (t.Description like '%c' or t.Description like '%d' or t.Description like '%e')) 
GROUP BY service.SR_Service_RecID, convert(date,te.Date_Start), m.First_Name, m.Last_Name 
HAVING SUM(DATEDIFF(s, te.time_start, te.time_end)) > 1800 
ORDER BY service.SR_Service_RecID desc