SQL Syntax to count unique users completing a task - sql

Question

I have the following code which shows me what users has completed ticket and this lists each user and the date they close a ticket. i.e.
Paul
Matt
Matt
Bob
Matt
Paul
Matt
Matt
At the moment I manually count each user myself to see their totals for the day.
EDIT: Changed output as columns instead of rows:
What I have been trying to do is get SQL Server to do this for me i.e. the final result to look like:
Paul | 2
Matt | 5
Bob | 1
My code I am currently using is and I would be greatful if someone can help me change this so I can get it outputting something similar to above?
DECLARE #StartDate DateTime;
DECLARE #EndDate DateTime;
-- Date format: YYYY-MM-DD
SET #StartDate = '2013-11-06 00:00:00'
SET #EndDate = GETDATE() -- Today
SELECT (select Username from Membership where UserId = Ticket.CompletedBy) as TicketStatusChangedBy
FROM Ticket INNER JOIN
TicketStatus ON Ticket.TicketStatusID = TicketStatus.TicketStatusID INNER JOIN
Membership ON Ticket.CheckedInBy = Membership.UserId
WHERE TicketStatus.TicketStatusName = 'Completed' and Ticket.ClosedDate >= #StartDate --(GETDATE() - 1)
and Ticket.ClosedDate <= #EndDate --(GETDATE()-0)
ORDER BY Ticket.CompletedBy ASC, Ticket.ClosedDate ASC
Thank you for your help and time.

Answer 1

Not sure if you specifically want it in that format but if you had it in rows it's a lot simpler as a query:
SELECT Names, COUNT(Names)
FROM Table1
GROUP BY Names
SQL Fiddle

Answer 2

Declare #t table(names varchar(100))
DECLARE #StartDate DateTime;
DECLARE #EndDate DateTime;
-- Date format: YYYY-MM-DD
SET #StartDate = '2013-11-06 00:00:00'
SET #EndDate = GETDATE() -- Today
insert into #t(names)
SELECT (select Username from Membership where UserId = Ticket.CompletedBy) as TicketStatusChangedBy
FROM
Ticket INNER JOIN TicketStatus ON Ticket.TicketStatusID = TicketStatus.TicketStatusID INNER JOIN
Membership ON Ticket.CheckedInBy = Membership.UserId
WHERE TicketStatus.TicketStatusName = 'Completed' and Ticket.ClosedDate >= #StartDate
--(GETDATE() - 1)
and Ticket.ClosedDate <= #EndDate --(GETDATE()-0)
ORDER BY Ticket.CompletedBy ASC, Ticket.ClosedDate ASC
Select
sum(case when names='Paul' then 1 else 0 end) as Paul,
sum(case when names='Matt' then 1 else 0 end) as Matt,
.
.
.
from #t

Answer 3

CREATE TABLE SomeTable
(Name NVARCHAR(20))
GO
INSERT INTO SomeTable
VALUES ('Mark'), ('Mark'),('Mark'),('SAM'),('SAM'),('Josh')
GO
;WITH CTE
AS
(
SELECT NAME, COUNT(*) AS Total FROM SomeTable
GROUP BY Name
)
SELECT *
FROM CTE
PIVOT (
MAX(Total)
FOR NAME
IN ([Mark], [SAM], [Josh])
)l
Result Set
Mark SAM Josh
3 2 1
Obviously If there are many values in the table you will need to use Dynamic Sql, 1st build the Comma deliminited list of all the distinct values/names then pass the list of names in the 'IN' cluase of above query it to the Dynamic Sql.
Using Dynamic SQL
DECLARE #NameList NVARCHAR(MAX) = ''
DECLARE #Sql NVARCHAR(MAX)
SELECT #NameList = #NameList + ',[' + Name + ']'
FROM (SELECT DISTINCT NAME FROM SomeTable)t
SET #NameList = STUFF(#NameList, 1, 1, '')
PRINT #NameList --<---- for checking purpose to see if list is as expected
SET #Sql = ';WITH CTE
AS
(
SELECT NAME, COUNT(*) AS Total FROM SomeTable
GROUP BY Name
)
SELECT *
FROM CTE
PIVOT (
MAX(Total)
FOR NAME
IN ('+ #NameList + ')
)l'
EXECUTE sp_executesql #Sql
Result Set
Mark SAM Josh
3 2 1