DYNAMIC PIVOT - Problem with variables

Question

Dear All,
I'm working on a Query that makes use of Dynamic Pivot
It is intented to give a summarized list of Income and Expenses month by month
I have adapted the foll. Query from SAP B1 Forum to my problem:
Re: Date Wise Production Report
Unfortunately my adaptation does not work.
When I run it, the following Selection Criteria screen appears. I input the dates as below:
Query - Selection Criteria
Posting Date        Greater or Equal            01.01.11
Posting Date        Smaller or Equal            31.12.11
[OK]      [Cancel]
On pressing [OK], I receive this error message:
Incorrect Syntax near 20110101
Grateful if anybody could help me spot my mistake (It's likely to be within Section 2)
Thanks
Leon Lai
Here's my adapted SQL
/*Section 1*/
DECLARE @listCol VARCHAR(2000)
DECLARE @query VARCHAR(4000)
/*Section 2*/
SELECT @listCol =
STUFF(
( SELECT DISTINCT
'],[' + CONVERT(VARCHAR, MONTH(T0.RefDate), 102)
FROM JDT1
FOR XML PATH('')
, 1, 2, '') + ']'
/*Section 3*/
SET @query =
SELECT * FROM
SELECT
T0.Account,
T1.GroupMask,
T1.AcctName,
MONTH(T0.RefDate) as [Month],     
(T0.Debit - T0.Credit) as [Amount]
FROM dbo.JDT1 T0
JOIN dbo.OACT T1 ON T0.Account = T1.AcctCode
WHERE
T1.GroupMask IN (4,5,6,7) AND
T0.[Refdate] >= '[%1]'AND
T0.[Refdate] <= '[%2]'
) S
PIVOT
Sum(Amount)
FOR [Month] IN ('+@listCol+')
) AS pvt
/*Section 4*/
EXECUTE (@query)

Answer 1

Hi,
try to update where condition as  :
T0.[Refdate] >= ' + cast ([%1] as nvarchar) + ' AND
T0.[Refdate] <= ' + Cast([%2] as Nvarchar) + '
Thanks,
Neetu