Put code under system.web
<sessionState mode="InProc" cookieless="UseUri" timeout="20000"></sessionState>
<sessionState mode="InProc" cookieless="UseUri" timeout="20000"></sessionState>
select max(cast(convert(varchar, convert(datetime, [CR_DATE], 103), 101) as date)) from OPENDATASOURCE ( 'SQLNCLI' ...