参考:[FuelPHP] FuelPHPで作るログイン管理
CREATE TABLE `users` (
`id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY ,
`username` VARCHAR( 50 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL ,
`password` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL ,
`group` INT NOT NULL DEFAULT 1 ,
`email` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL ,
`last_login` VARCHAR( 25 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL ,
`login_hash` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL ,
`profile_fields` TEXT CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL ,
`created_at` INT( 11 ) UNSIGNED NOT NULL ,
UNIQUE (
`username` ,
`email`
)
)