CREATE TABLE IF NOT EXISTS `tb_exemplo` (
  `id_exemplo` int(11) primary key auto_increment NOT NULL,
  `nm_exemplo` varchar(100),
  `dt_registrado` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `dt_alterado` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00'
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=5 ;