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Pivot


Pivot

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UnionAll
UnionAll
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Group: General Forum Members
Points: 510 Visits: 637
Hello,
I am trying to count distinct employees by month for each department. Below is my source table.
IF OBJECT_ID('TempDB..#Table') IS NOT NULL
DROP TABLE #Table
CREATE TABLE #Table (Department VARCHAR(20), EmpID INT, [Month] INT)
INSERT INTO #Table
SELECT 'Marketing',268638,3 UNION ALL
SELECT 'Marketing',268638,3 UNION ALL
SELECT 'Marketing',268638,6 UNION ALL
SELECT 'Marketing',268638,6



The result set should look like this.
IF OBJECT_ID('TempDB..#Results') IS NOT NULL
DROP TABLE #Results
CREATE TABLE #Results (Department VARCHAR(20),[1] INT,[2] INT, [3] INT,[4] INT,[5] INT,[6] INT,[7] INT,[8] INT,[9] INT,[10] INT,[11] INT,[12] INT)
INSERT INTO #Results
SELECT 'Marketing',0,0,1,0,0,1,0,0,0,0,0,0



There is the same employee 268638 twice in the month of 3(March) and 6(June). I need to pivot the result set with distinct counts by month.
Any help please! Thanks.
Gianluca Sartori
Gianluca Sartori
SSC-Insane
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Group: General Forum Members
Points: 24967 Visits: 13362
You can pre-aggregate the results in the pivot source:


IF OBJECT_ID('TempDB..#Table') IS NOT NULL
DROP TABLE #Table
CREATE TABLE #Table (Department VARCHAR(20), EmpID INT, [Month] INT)
INSERT INTO #Table
SELECT 'Marketing',268638,3 UNION ALL
SELECT 'Marketing',268638,3 UNION ALL
SELECT 'Marketing',268638,6 UNION ALL
SELECT 'Marketing',268638,6





IF OBJECT_ID('TempDB..#Results') IS NOT NULL
DROP TABLE #Results
CREATE TABLE #Results (Department VARCHAR(20), [1] INT,[2] INT, [3] INT,[4] INT,[5] INT,[6] INT,[7] INT,[8] INT,[9] INT,[10] INT,[11] INT,[12] INT)



INSERT INTO #Results
SELECT Department,
ISNULL([1],0),
ISNULL([2],0),
ISNULL([3],0),
ISNULL([4],0),
ISNULL([5],0),
ISNULL([6],0),
ISNULL([7],0),
ISNULL([8],0),
ISNULL([9],0),
ISNULL([10],0),
ISNULL([11],0),
ISNULL([12],0)
FROM (
SELECT Department, Month, CNT = COUNT(DISTINCT EmpId)
FROM #Table
GROUP BY Department, Month
) AS SRC
PIVOT (SUM(CNT) FOR Month IN ([1],[2],[3],[4],[5],[6],[7],[8],[9],[10],[11],[12])) AS PVT


SELECT * FROM #Results



Does it do the trick for you?

--Gianluca Sartori

How to post T-SQL questions
spaghettidba.com
@spaghettidba
UnionAll
UnionAll
Mr or Mrs. 500
Mr or Mrs. 500 (510 reputation)Mr or Mrs. 500 (510 reputation)Mr or Mrs. 500 (510 reputation)Mr or Mrs. 500 (510 reputation)Mr or Mrs. 500 (510 reputation)Mr or Mrs. 500 (510 reputation)Mr or Mrs. 500 (510 reputation)Mr or Mrs. 500 (510 reputation)

Group: General Forum Members
Points: 510 Visits: 637
Perfect. Thank you so much.
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