SELECT ${type} AS TYPE, COUNT(*) AS COUNT FROM ( SELECT USER_AGENT, REFERER, DATE_FORMAT(ACCESS_DATE, '%Y-%m-%d') AS ACCESS_DATE FROM IMB_VISITOR ) A GROUP BY ${type} SELECT IP, USER_AGENT, REFERER, ACCESS_DATE FROM IMB_VISITOR WHERE IP = #{ip} AND USER_AGENT = #{userAgent} AND REFERER = #{referer} AND DATE_FORMAT(ACCESS_DATE, '%Y-%m-%d %H:%i') = #{accessDate} INSERT IMB_VISITOR (IP, USER_AGENT, REFERER, ACCESS_DATE) VALUES ( #{ip}, #{userAgent}, #{referer}, DATE_FORMAT(now(), '%Y-%m-%d %H:%i') ) DELETE FROM IMB_VISITOR WHERE ACCESS_DATE <= DATE_ADD(now(), interval -3 month)