DECLARE
   l_ret   clob;
BEGIN
   SELECT   XMLTRANSFORM(xmltype(:P5_XML), xmltype(:P5_XSL)).GetClobVal()
   INTO     l_ret
   FROM     dual;
   htp.p(l_ret);
EXCEPTION
   WHEN OTHERS
   THEN
      l_ret := SQLCODE ||' - '||SQLERRM;
      htp.p(l_ret);
END;