oracle function return list of values
CREATE TYPE object_row_type as OBJECT (
object_type VARCHAR(18),
object_name VARCHAR(30)
);
CREATE TYPE object_table_type as TABLE OF object_row_type;
CREATE OR REPLACE FUNCTION get_all_objects
RETURN object_table_type PIPELINED AS
BEGIN
FOR cur IN (SELECT * FROM all_objects)
LOOP
PIPE ROW(object_row_type(cur.object_type, cur.object_name));
END LOOP;
RETURN;
END;
SELECT * FROM TABLE(get_all_objects);