how to assign Varchar(max) to string variable by using Execute Sql Task in SSIS

how to assign Varchar(max) to string variable by using Execute Sql Task in SSIS

DECLARE @Col1List VARCHAR(MAX)

SELECT
@Col1List = ISNULL(@Col1List,'')
+ 
''''
+ 
LTRIM(RTRIM(Col1))
+ 
''''
+ 
','
FROM
MY_COL1_TABLE

SELECT 

LTRIM(RTRIM(LEFT(@Col1List,LEN(@Col1List)-1)))

Ref:http://social.msdn.microsoft.com/Forums/en/transactsql/thread/ecd5c16f-2878-40ed-8d1b-91f3cb77b107

how to assign Col1List value to string variable in ssis using Execute Sql Task

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