tabelas de login e logout

 CREATE TABLE `tb_login` (

  `idLogin` int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,

  `idUsername` int(11) NOT NULL,

  `dataLogin` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

) ;

CREATE TABLE `tb_logout` (

  `idLogout` int(11)  NOT NULL AUTO_INCREMENT PRIMARY KEY,

  `idLogin` int(11) NOT NULL,

  `dataLogout` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

) ;