sql查詢中的列未分組

Question

我遇到以下sql select查詢的問題。這些列不是按組命令聚合的。

SELECT 
    Dept.Name AS DeptName, COUNT (T.Id) AS TotalServiceNumber, 
    (Case when SS.Status <> 'Resolved' then COUNT (T.Id) end) AS UnresolvedNumber, 
    (Case when T.FixTime < '120' then COUNT(T.FixTime) end) AS ResolvedLessThanTwoHoursNumber, 
    (Case when T.FixTime > '120' then COUNT(T.FixTime) end) AS ResolvedMoreThanTwoHoursNumber, 

FROM 
    dbo.Tickets AS T, 
    dbo.ServiceStatuses AS SS, 
    dbo.ComputerDesks AS Desk, 
    dbo.Personnels AS Person, 
    dbo.Departments AS Dept 
WHERE 
    SS.Id = T.ServiceStatusId 
    AND T.ComputerDeskId = Desk.Id 
    AND Desk.PersonnelId = Person.Id 
    AND Person.DepartmentId = Dept.Id 

GROUP BY 
    Dept.Name, SS.Status, T.FixTime 

我得到以下結果：

DeptName | TotalServiceNr | UnresolvedNumber | LessThanTwo | MoreThanTwo 
DeptA | 8    | NULL    | 8   | NULL   
DeptB | 1    | 1     | NULL  | 1   
DeptC | 4    | NULL    | NULL  | 4   
DeptA | 38    | NULL    | NULL  | 38   
DeptB | 55    | NULL    | 55   | NULL   
DeptC | 7    | NULL    | 7   | NULL   
... 

預期結果：

DeptName | TotalServiceNr | UnresolvedNumber | LessThanTwo | MoreThanTwo 
DeptA | 46    | NULL    | 8   | 38  
DeptB | 56    | 1     | 55   | NULL    
DeptC | 11    | NULL    | 7   | 4  

我需要改變，以獲得期望的結果？

Answer 1

嘗試此查詢：

SELECT 
    Dept.Name AS DeptName, COUNT (T.Id) AS TotalServiceNumber, 
    sum(Case when SS.Status <> 'Resolved' then 1 else 0 end) AS UnresolvedNumber, 
    sum(Case when T.FixTime <= '120' then 1 else 0 end) AS ResolvedLessThanTwoHoursNumber, 
    sum(Case when T.FixTime > '120' then 1 else 0 end) AS ResolvedMoreThanTwoHoursNumber, 

FROM 
    dbo.Tickets AS T, 
    dbo.ServiceStatuses AS SS, 
    dbo.ComputerDesks AS Desk, 
    dbo.Personnels AS Person, 
    dbo.Departments AS Dept 
WHERE 
    SS.Id = T.ServiceStatusId 
    AND T.ComputerDeskId = Desk.Id 
    AND Desk.PersonnelId = Person.Id 
    AND Person.DepartmentId = Dept.Id 

GROUP BY 
    Dept.Name 

Answer 2

試試這個

SELECT TotalServiceNumber, SUM(UnresolvedNumber), SUM(ResolvedLessThanTwoHoursNumber), SUM(ResolvedMoreThanTwoHoursNumber) 
FROM (
    SELECT 
     Dept.Name AS DeptName, COUNT (T.Id) AS TotalServiceNumber, 
     (Case when SS.Status <> 'Resolved' then COUNT (C.Id) end) AS UnresolvedNumber, 
     (Case when T.FixTime < '120' then COUNT(T.FixTime) end) AS ResolvedLessThanTwoHoursNumber, 
     (Case when T.FixTime > '120' then COUNT(T.FixTime) end) AS ResolvedMoreThanTwoHoursNumber, 

    FROM 
     dbo.Tickets AS T, 
     dbo.ServiceStatuses AS SS, 
     dbo.ComputerDesks AS Desk, 
     dbo.Personnels AS Person, 
     dbo.Departments AS Dept 
    WHERE 
     SS.Id = T.ServiceStatusId 
     AND T.ComputerDeskId = Desk.Id 
     AND Desk.PersonnelId = Person.Id 
     AND Person.DepartmentId = Dept.Id 
    GROUP BY Dept.Name, SS.Status, T.FixTime 
) GROUPED 
GROUP BY 
    TotalServiceNumber 

Answer 3

SELECT 
     Dept.Name AS DeptName 
    , COUNT (T.Id) AS TotalServiceNumber 
    ,COUNT(Case when SS.Status <> 'Resolved' then 1 ELSE NULL end) AS UnresolvedNumber 
    ,COUNT(Case when T.FixTime < '120' then 1 ELSE NULL end) AS ResolvedLessThanTwoHoursNumber 
    ,COUNT(Case when T.FixTime > '120' then 1 ELSE NULL end) AS ResolvedMoreThanTwoHoursNumber 

FROM 
    dbo.Tickets AS T INNER JOIN dbo.ServiceStatuses AS SS 
ON SS.Id = T.ServiceStatusId 
INNER JOIN dbo.ComputerDesks AS Desk 
ON T.ComputerDeskId = Desk.Id 
INNER JOIN dbo.Personnels AS Person 
ON Desk.PersonnelId = Person.Id 
INNER JOIN dbo.Departments AS Dept 
Person.DepartmentId = Dept.Id 
GROUP BY Dept.Name 

還可以使用ON語法您的加入。