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Dynamic Pivot Columns

Posted on 2010-08-19
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Medium Priority
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Last Modified: 2012-05-10
The attached code works...but I need to make the pivot part dynamic because the months will change in my Stored Procedure based on paramaters passed in for BegDate and EndDate.

This is the DYNAMIC I've been trying to get working...no go so far
It returns this error
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.

on this sql
declare @sql varchar(4000)
declare @columns varchar(8000)  
set @columns = (select Mth from #temp group by Mth)
 
set @sql = 'SELECT * FROM  
    (SELECT [rep], [GrossRev], [Mth] as Mth from #temp) src
     PIVOT
    (Sum ([GrossRev]) FOR Mth IN (' + @columns + ') ) AS pvt'
 
EXEC (@sql)
SELECT 	v.rep,
		Sum(v.[Gross Rev]) as GrossRev, 
		DATENAME(month, v.Funded) as Mth
Into #temp
FROM	CRMPROD_01.dbo.v_P_Reporting v
WHERE	v.Funded is not null 
		and	v.Status <> 'Closed' 
		and (YEAR(v.Funded) = YEAR(getdate())) 
		and	(MONTH(v.Funded) > MONTH(getdate())-3)
Group by rep, v.Funded
ORDER BY v.rep, DATENAME(month, v.Funded)

SELECT Rep,June,July  
FROM (  
SELECT Rep,Mth,Grossrev FROM #temp)P  
PIVOT   
(SUM(Grossrev) FOR Mth IN (June,July))As Pvt
order by rep

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Question by:lrbrister
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5 Comments
 
LVL 58

Expert Comment

by:cyberkiwi
ID: 33480461
declare @sql varchar(4000)
declare @columns varchar(8000)  

select @columns = coalesce(@columns+',','') + '[' + Mth + ']'
from #temp
group by Mth
 
set @sql = '
    SELECT [rep], ' + @columns + '
    FROM  
    (SELECT [rep], [GrossRev], [Mth] as Mth from #temp) src
     PIVOT
    (Sum ([GrossRev]) FOR Mth IN (' + @columns + ') ) AS pvt'
 
EXEC (@sql)
0
 

Author Comment

by:lrbrister
ID: 33483880
cyberkiwi:
That's almost perfect...but it doesn't put the month in the correct ascending order.
In my attached code the resulting table is
 
rep          April       February       January    etc......
myrep     1000      246                    1458    etc...

SELECT  v.rep,  
                Sum(v.[Gross Rev]) as GrossRev,   
                DATENAME(month, v.Funded) as Mth  
Into #temp  
FROM    CRMPROD_01.dbo.v_P_Reporting v  
WHERE   v.Funded is not null   
                and     v.Status <> 'Closed'   
                and (YEAR(v.Funded) = YEAR(getdate()))   
                and     (MONTH(v.Funded) > MONTH(getdate())-8)  
Group by rep, v.Funded  
ORDER BY v.rep, DATENAME(month, v.Funded)  


--Dynamic SQl and Pivot 
declare @sql varchar(4000)
declare @columns varchar(8000)  

select @columns = coalesce(@columns+',','') + '[' + Mth + ']'
from #temp
group by Mth
 
set @sql = '
    SELECT [rep], ' + @columns + '
    FROM  
    (SELECT [rep], [GrossRev], [Mth] as Mth from #temp) src
     PIVOT
    (Sum ([GrossRev]) FOR Mth IN (' + @columns + ') ) AS pvt'
 
EXEC (@sql)

drop table #temp

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0
 
LVL 58

Accepted Solution

by:
cyberkiwi earned 2000 total points
ID: 33483974
I suspect just changing the order by in the insert clause will work.  It is currently going in alphabetically.
But just to be safe...
SELECT  v.rep,  
                Sum(v.[Gross Rev]) as GrossRev,   
                DATENAME(month, v.Funded) as Mth  ,
                month(v.Funded) as MthI  
Into #temp  
FROM    CRMPROD_01.dbo.v_P_Reporting v  
WHERE   v.Funded is not null   
                and     v.Status <> 'Closed'   
                and (YEAR(v.Funded) = YEAR(getdate()))   
                and     (MONTH(v.Funded) > MONTH(getdate())-8)  
Group by rep, v.Funded  
ORDER BY v.rep, month(v.Funded)

--Dynamic SQl and Pivot 
declare @sql varchar(4000)
declare @columns varchar(8000)  

select @columns = coalesce(@columns+',','') + '[' + Mth + ']'
from #temp
group by Mth, MthI
order by MthI
 
set @sql = '
    SELECT [rep], ' + @columns + '
    FROM  
    (SELECT [rep], [GrossRev], [Mth] as Mth from #temp) src
     PIVOT
    (Sum ([GrossRev]) FOR Mth IN (' + @columns + ') ) AS pvt'
 
EXEC (@sql)

drop table #temp

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0
 

Author Comment

by:lrbrister
ID: 33484018
cyberkiwi:
Perfect!  Remind me to buy you a sody-pop sometime!
0
 

Author Closing Comment

by:lrbrister
ID: 33484169
Perfiect!  Please look for follow-up question
0

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