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 Dynamic Pivot

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Villanuev
Constraint Violating Yak Guru

478 Posts

Posted - 2012-08-14 : 09:15:57
Hi Guys,

I have a requirements to have the returndate as my header.
I use the pivot but i dont know on how to make this as dynamics pivot.
I have to get the month to date data.

THank you in advance.

Here is my sample data.


Create table #SampleData
(Returndate datetime,
Itemid nvarchar(35),
Qty int)

Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-07-06','HTC1201',100)
Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-07-06','LGE3539',200)
Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-07-13','HTC1201',150)
Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-07-13','LGE3539',100)
Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-07-20','HTC1201',400)
Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-07-20','LGE3539',400)
Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-07-27','HTC1201',100)
Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-07-27','LGE3539',100)
Insert into #SampleData (Returndate, Itemid, Qty) values ('2012-08-03','HTC1201',1000)


Result:
Itemid----6----13-------20-----27
---------------------------------
HTC1201--100---150-----400----100
LGE3539--200---100-----400----100


My Script:
SELECT *
FROM (SELECT Itemid, DAY(ReturnDate) AS trandate, Qty
FROM #SampleData) AS D
PIVOT(SUM(qty) FOR trandate IN([6],[13],[20],[27])) AS P
Order by Itemid

YuvarajKrishna
Starting Member

4 Posts

Posted - 2012-08-14 : 09:47:51
Hi Villanuev Try This its will work

DECLARE @Columns VARCHAR(max)
DECLARE @DynamicSql VARCHAR(max)


Select @Columns = +Coalesce(+@Columns +'],[','') + ReturnDate
From
(
SELECT DISTINCT CONVERT(VARCHAR,ReturnDate,101) ReturnDate
FROM #SampleData
)A
SET @DynamicSql ='SELECT *
FROM (SELECT Itemid,
convert(varchar,ReturnDate,101) AS trandate,
Qty
FROM #SampleData
) AS D
PIVOT(SUM(qty) FOR trandate IN(['+@Columns+'])) AS P
Order by Itemid'

EXEC (@DynamicSql)

Yuvaraj
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yosiasz
Master Smack Fu Yak Hacker

1635 Posts

Posted - 2012-08-14 : 12:05:39
using following sproc by madhivanan

http://sqlblogcasts.com/blogs/madhivanan/archive/2008/08/27/dynamic-pivot-in-sql-server-2005.aspx

exec dynamic_pivot 'SELECT Itemid, Qty from SampleData WHERE DAY(ReturnDate) <> 3' , 'DAY(ReturnDate)', 'SUM(qty)'


<><><><><><><><><><><><><><><><><>
If you don't have the passion to help people, you have no passion
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joe8079
Posting Yak Master

127 Posts

Posted - 2012-08-14 : 18:36:34
Just had a quick comment about this post and a question. Wouldnt it be easier to use a matrix to do this dynamic pivot? I'm not sure if you have access to reporting services, but it seems like this could be done in a matrix by using column groups. If you dont have access to reporting services, then this code works fine, but your life would be much easier.
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2012-08-14 : 18:42:09
quote:
Originally posted by joe8079

Just had a quick comment about this post and a question. Wouldnt it be easier to use a matrix to do this dynamic pivot? I'm not sure if you have access to reporting services, but it seems like this could be done in a matrix by using column groups. If you dont have access to reporting services, then this code works fine, but your life would be much easier.


yep..if you're using SSRS as front end matix container would do the trick for you. Otherwise its best dealt with inside T-SQL using a function like in the link posted

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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Villanuev
Constraint Violating Yak Guru

478 Posts

Posted - 2012-08-15 : 01:31:46
Thank you guys for the reply.

Hi Visakh & Joe8079,

Yes, i have an access to reporting services. actually my objective for this script is to use in SSRS report.
I will make a dataset using this scripts that will create a report in SSRS.

btw, youre saying about the matrix that do a dynamic pivot, can you please give me some idea on this. thanks.
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joe8079
Posting Yak Master

127 Posts

Posted - 2012-08-15 : 17:32:59
Hey, its actually really, really easy to use a matrix container for what your doing. Basically, you would take whatever field you wanted to pivot on and add it as a column group. It works just like the dynamic pivot in sql, but much easier to work with and you can add some more detail to the report as well. You have row groups, column groups and a field with what you want to have as an aggregate.

here is a pretty good link. It does everything your trying to do in reporting services.

http://technet.microsoft.com/en-us/library/ms157334%28v=sql.100%29.aspx
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Villanuev
Constraint Violating Yak Guru

478 Posts

Posted - 2012-08-16 : 05:42:23
Thank you very much @Joe8079. it working now. its easier compare to dynamics pivot. very helpful..
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