Run Parameter Query on MySQL based Link Server

Hi All,

I have a table value function, here's the code: 

ALTER FUNCTION [dbo].[GetJobApplicantsFromMySQL]
(	
	-- Add the parameters for the function here
)
RETURNS TABLE 
AS
RETURN 
(
	-- Add the SELECT statement with parameter references here
	SELECT * FROM OPENQUERY(MySQL, 'SELECT 3 AS JobPostingOption, user_id AS Id, CONCAT(firstname , '' '', lastname ) AS Name, email AS Email, '''' AS ResumeFullPath FROM vantage_db.wpjb_resume')	
)

Its running perfectly fine but now I have different requirement I have to use same query on different databases, I came across this article: http://support.microsoft.com/kb/314520?wa=wsignin1.0 and I decided to give it a try and I come up with this TSQL for testing purpose : 

DECLARE @VAR varchar(64)
SELECT  @VAR = 'vantage_db'
EXEC MySQL.master.dbo.sp_executesql
	 N'SELECT 3 AS JobPostingOption, user_id AS Id, CONCAT(firstname , '' '', lastname ) AS Name, email AS Email, '''' AS ResumeFullPath FROM @DBName.wpjb_resume',
     N'@DBName varchar(64)',
     @VAR

But it's giving me the following error: 

OLE DB provider "MSDASQL" for linked server "MySQL" returned message "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.".
Msg 7212, Level 17, State 1, Line 3
Could not execute procedure 'sp_executesql' on remote server 'MySQL'.

Any ideas? 

Thanks,

Attiqe

Attiqe Ur Rehman