mysql某列多值查询_MySQL

查询SQL:SELECT kk.`title`,COUNT(1) times FROM (SELECT `title`, `content` FROM `article` WHERE `content` IN ('aa',  'cc') GROUP BY `title`, `content`) kk GROUP BY kk.`title` HAVING times>=2;CREATE TABLE IF NOT EXISTS `article` (  `id` int(11) NOT NULL AUTO_INCREMENT,  `title` varchar(100) NOT NULL,  `content` varchar(20) NOT NULL,  PRIMARY KEY (`id`)) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=5 ;INSERT INTO `article` (`id`, `title`, `content`) VALUES(1, 'a', 'aa'),(2, 'a', 'cc'),(3, 'a', 'aa'),(4, 'c', 'cc');

效果估计很差，请大牛指点点