CREATE OR REPLACE FUNCTION cpp_plsql_func (param1 IN     NUMBER	   
                          ,param2 IN OUT VARCHAR2	   
                          ,param3    OUT VARCHAR2	   
                          ) 	   
  RETURN VARCHAR2 AS 	   
BEGIN 	   
  param3 := param1 || ' ' ||param2 || ' sind weg'; 	   
  param2 := 'Kruemel';	   
  RETURN 'Danke';	   
END;