Columns in sql query are not grouped - sql

Question

I've a problem with the following sql select query. The columns are not aggregated by the group by command.
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
I'm getting the following result:
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
...
Expected result:
DeptName | TotalServiceNr | UnresolvedNumber | LessThanTwo | MoreThanTwo
DeptA | 46 | NULL | 8 | 38
DeptB | 56 | 1 | 55 | NULL
DeptC | 11 | NULL | 7 | 4
What I need to change to get the expected result?

Answer 1

try this query:
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

Try this
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
Also use ON syntax for your joins.