How Do I Create An Sql Using Case In Pivot Statement

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Hello, Please, I need to separete the quantity of clients we had sell them products by sellers in a period of a month.
The query I have is this but it doesn`t work:

SQL

select * 
from (select SELLER, DATE, CLIENT
      from proddta.SALE where SELLER in ('JHON', 'MATH', 'PETER'))
PIVOT (
       count(DISTINCT(CLIENT)) as QUANTITY_CLIENT FOR DATE in  
          (case when DATE between 01/05/14 and 13/05/14 as 01 end), 
          (case when DATE between 14/05/14 and 22/05/14 as 02 end),
          (case when DATE between 23/05/14 and 30/05/14 as 03 end)
          );

My doubt is after the "IN" but perhaps I am writng it wrong from the beggining.

The output would be the following

-------NumberOfclientsPeriod_01|NumberOfClientsPeriod02|NumberofclientsPeriod03
JHON------------23 --------------------------24----------------------20
MATH------------20 --------------------------22----------------------21
PETER------------24--------------------------21----------------------22

Posted 21-Jul-14 4:00am

Member 10960881

Updated 21-Jul-14 10:08am

v7

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Comments

Andrius Leonavicius 21-Jul-14 15:46pm

Hi,

It would be easier to help you if you could post input and output samples...

Member 10960881 21-Jul-14 16:09pm

Hi Andrius, the output would be the following:

-------NumberOfclientsPeriod_01|NumberOfClientsPeriod02|NumberofclientsPeriod03
JHON------------23 --------------------------24----------------------20
MATH------------20 --------------------------22----------------------21
PETER------------24--------------------------21----------------------22

Member 10960881 21-Jul-14 16:12pm

It works well for single days like:
select *
from (select SELLER, DATE, CLIENT
from proddta.SALE where SELLER in ('JHON', 'MATH', 'PETER'))
PIVOT (
count(DISTINCT(CLIENT)) as QUANTITY_CLIENT FOR DATE in (01/05/14, 02/05/14, 03/05/14)

But i am needing to range the date

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Maciej Los · Accepted Answer · 2014-07-21T11:16:00

It would be something like this:

SQL

DECLARE @SALE TABLE (SELLER VARCHAR(30), [DATE] DATETIME, CLIENT VARCHAR(30))

INSERT INTO @SALE (SELLER, [DATE], CLIENT )
VALUES('JHON','2014-05-01','A'), ('JHON','2014-05-07','B'), ('JHON','2014-05-09','C'), ('JHON','2014-05-14','E'), ('JHON','2014-05-15','A'), ('JHON','2014-05-18','D'),
('MATH','2014-05-20','A'), ('MATH','2014-05-21','B'), ('MATH','2014-05-22','C'), ('MATH','2014-05-25','D'), ('MATH','2014-05-28','C'), ('MATH','2014-05-28','C'), 
('PETER','2014-05-29','A'), ('PETER','2014-05-29','B'), ('PETER','2014-05-30','D'), ('PETER','2014-05-30','D'), ('PETER','2014-05-30','E'), ('PETER','2014-05-30','A') 


SELECT *
FROM @SALE 

SELECT SELLER, [01], [02], [03]
FROM (
		SELECT SELLER, Period, COUNT(DISTINCT CLIENT) AS NOFClients
		FROM (
			SELECT SELLER, [Period] = CASE WHEN [DATE] BETWEEN '2014-05-01' AND '2014-05-13' THEN '01'
                                      WHEN [DATE] BETWEEN '2014-05-14' AND '2014-05-22' THEN '02'
                                      WHEN [DATE] BETWEEN '2014-05-23' AND '2014-05-30' THEN '03'
                      END, CLIENT
			FROM @SALE
			) AS T
      WHERE SELLER IN ('JHON', 'MATH', 'PETER')
      GROUP BY SELLER, [Period]
     ) AS DT
PIVOT(SUM(NOFClients) FOR [Period] IN ([01], [02], [03])) AS PT

Results:

JHON    2014-05-01 00:00:00.000 A
JHON    2014-05-07 00:00:00.000 B
JHON    2014-05-09 00:00:00.000 C
JHON    2014-05-14 00:00:00.000 E
JHON    2014-05-15 00:00:00.000 A
JHON    2014-05-18 00:00:00.000 D
MATH    2014-05-20 00:00:00.000 A
MATH    2014-05-21 00:00:00.000 B
MATH    2014-05-22 00:00:00.000 C
MATH    2014-05-25 00:00:00.000 D
MATH    2014-05-28 00:00:00.000 C
MATH    2014-05-28 00:00:00.000 C
PETER   2014-05-29 00:00:00.000 A
PETER   2014-05-29 00:00:00.000 B
PETER   2014-05-30 00:00:00.000 D
PETER   2014-05-30 00:00:00.000 D
PETER   2014-05-30 00:00:00.000 E
PETER   2014-05-30 00:00:00.000 A

e=text

JHON    3       3   NULL
MATH    NULL    3   2
PETER   NULL    NULL    4

For further information, please see:
CASE[^]
PIVOT and UNPIVOT[^]
Aggregate Functions (Transact-SQL)[^]