在桌子上获得最高分？

Question

我有桌子

CREATE TABLE IF NOT EXISTS `logs` (
  `userid` int(11) NOT NULL,
  `ipaddress` char(15) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
  `hwid` char(32) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
  `lastlogin` int(10) unsigned NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

我想要做的是获取具有最多不同hwids的用户标识。在我添加hwid之前，我可以使用DISTINCT和GROUP BY userid来获取具有最不同ips的用户ID。

Answer 1

SELECT  userid, COUNT(DISTINCT hwid) AS cnt
FROM    logs
GROUP BY
        userid
ORDER BY
        cnt DESC
LIMIT 10