Pivot

Hi there,

I have table like the below and want to see in Matrix table. I know this could be achieved thro Pivot, not sure how to query please help.
doesnot matter if we can do it in SSMS or in SSIS.

Mobile  Calldate      Dispo
234       20-2-2011    CB
235       21-2-2011     PTP
..
...
....

Desired table
Mobile 20-2-2011 21-02-2011 22-2-2011 ...
234      CB              null              null
235       null            ptp               null
parpaaAsked:
Who is Participating?
 
SharathConnect With a Mentor Data EngineerCommented:
I assume that you have only one record for Mobile and CallDate combination. If so, you can still use PIVOT with aggregate function. The aggregate function will be applied to only one record, so it won't be a problem.
If you know the number of Calldates, you can try providing all the dates in pivot clause. you can try like this.
select *
  from your_table
 pivot (max(Dispo) for Calldate in ([20-2-2011],[21-2-2011])) as p

Open in new window

tested on my machine.
create table #table(Mobile int, Calldate varchar(20), Dispo varchar(10))
insert #table values (234,'20-2-2011','CB'),(235,'21-2-2011','PTP')
select *
  from #table
 pivot (max(Dispo) for Calldate in ([20-2-2011],[21-2-2011])) as p
drop table #table
/*
Mobile	20-2-2011	21-2-2011
234	CB	NULL
235	NULL	PTP
*/

Open in new window

If you don't know the number of Calldates, you can go for dynamic sql. check this.
declare @cols nvarchar(2000)
 select  @cols = stuff(( select distinct top 100 percent '],[' + t2.Calldate
                           from    your_table as t2
                          order by '],[' + t2.Calldate
                            for xml path('')), 1, 2, '') + ']'
declare @query nvarchar(4000)
set @query = 'select Mobile,' + @cols + 
               'from your_table
               pivot (max(Dispo) for Calldate in (' + @cols + ')) as p'
exec (@query)

Open in new window

tested with your sample data.
create table #table(Mobile int, Calldate varchar(20), Dispo varchar(10))
insert #table values (234,'20-2-2011','CB'),(235,'21-2-2011','PTP')

declare @cols nvarchar(2000)
 select  @cols = stuff(( select distinct top 100 percent '],[' + t2.Calldate
                           from    #table as t2
                          order by '],[' + t2.Calldate
                            for xml path('')), 1, 2, '') + ']'
declare @query nvarchar(4000)
set @query = 'select Mobile,' + @cols + 
               'from #table
               pivot (max(Dispo) for Calldate in (' + @cols + ')) as p'
exec (@query)

drop table #table
/*
Mobile	20-2-2011	21-2-2011
234	CB	NULL
235	NULL	PTP
*/

Open in new window

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Alpesh PatelAssistant ConsultantCommented:
There is Task in SSIS so you can easily covert it to matrix.
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parpaaAuthor Commented:
Thanks LeDaouk, PatelAlpesh

I will give a try.
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parpaaAuthor Commented:
I guess the PIVOT can be performed when we have aggregate function in the query.

I dont have such agg functions in my requirement.
hence pivot is of no use... i guess
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parpaaAuthor Commented:
@patel

kindly please tel me more about the task used in SSIS ..
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parpaaAuthor Commented:
Thanks Sharath for the code.
0
 
parpaaAuthor Commented:
Hi Sharath,

Conversion failed while converting date and or time from string data type,

Any suggestion is highly appreciated
thnks
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SharathConnect With a Mentor Data EngineerCommented:
try this.
declare @cols nvarchar(2000)
 select  @cols = stuff(( select distinct top 100 percent '],[' + convert(varchar,t2.Calldate,105)
                           from    your_table as t2
                          order by '],[' + convert(varchar,t2.Calldate,105)
                            for xml path('')), 1, 2, '') + ']'
declare @query nvarchar(4000)
set @query = 'select Mobile,' + @cols + 
               'from (select Mobile,convert(varchar,CallDate,105) CallDate,Dispo from your_table) t1
               pivot (max(Dispo) for Calldate in (' + @cols + ')) as p'
exec (@query)

Open in new window

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parpaaAuthor Commented:
Thanks sharath,

Will try
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parpaaAuthor Commented:
Hi Sharath,

I have the datatypes of my table as below


[Mobile No] Float
[Call date] datetime
[dispo]  varchar
I am sorry should have told this before..

Apologies.
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SharathData EngineerCommented:
I got the data type of Calldate as datetime when you got the error in the last post only. Did you try my last query?
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parpaaAuthor Commented:
Sharath,

Sorry could nt get chance as our sys id was locked out. It could be done only on monday. I am sure it would work.
Thnk you so much for your help.
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parpaaAuthor Commented:
It worked Fantastic!!! Many thanks
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parpaaAuthor Commented:
Sharath,
Thanks a lot for your help, Quick Question.. What if I want the above result set into new table?
Something like Select * into [newtble] from [oldtable].. how would i do it with above resultset?

Thanks again
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