Get distinct value, show multiple row values in one column
If there is a table called userList userid listid ---------- ------------- 1 2 2 2 1 2 1 1 2 1 2 3 2 1 Result I expected was: userid listid ---------- ------------- 1 1,2,2 2 1,1,2,3 SELECT userid, GROUP_CONCAT(DI STINCT listid ORDER BY listid ASC SEPARATOR ',') FROM mahesh GROUP BY userid; Table Used : CREATE TABLE IF NOT EXISTS `mahesh` ( `userid` int(11) NOT NULL, `listid` int(11) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1; INSERT INTO `mahesh` (`userid`, `listid`) VALUES (1, 2), (2, 2), (1, 2), (1, 1), (2, 1), (2, 3), ...