Script para excluir todos os objetos do schema ( Oracle )

BEGIN
FOR cur_rec IN (SELECT object_name, object_type
FROM user_objects
WHERE object_type IN ('TABLE',
'VIEW',
'PACKAGE',
'PROCEDURE',
'FUNCTION',
'SEQUENCE')) LOOP
BEGIN
IF cur_rec.object_type = 'TABLE' THEN
EXECUTE IMMEDIATE 'DROP ' || cur_rec.object_type || ' "' ||cur_rec.object_name ||'" CASCADE CONSTRAINTS';
ELSE
EXECUTE IMMEDIATE 'DROP ' || cur_rec.object_type || ' "' ||cur_rec.object_name || '"';
END IF;
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.put_line('FAILED: DROP ' || cur_rec.object_type || ' "' ||cur_rec.object_name || '"');
END;
END LOOP;
END;