How to retrieve XML Instance type(Oracle ) in tdbinput

[Anonymous]

I need to execute below query in tdbinput (Oracle) :

"

select extractValue(fc.data_xml,'/ns0:Customer/name ','xmlns:ns0="www.w3org.com/DataModel/Object/Customer"') name from customer fc

";

But its failing with syntax error because of "" and ' tokens . 

How to execute this query in tdbinput

[Anonymous]

Error is resolved using escape sequence \ before " . But its not fetching data ,even when data is present in that field.