SELECT user_id,SUM( TRUNCATE((TIME_TO_SEC(TIMEDIFF(leave_time,visit_time))/60)/10,0)) AS point FROM visit_tb WHERE TIME_TO_SEC(TIMEDIFF(leave_time,visit_time))/60 >10 GROUP BY user_id ORDER BY point DESC
SELECT user_id,SUM( TRUNCATE((TIME_TO_SEC(TIMEDIFF(leave_time,visit_time))/60)/10,0)) AS point FROM visit_tb WHERE TIME_TO_SEC(TIMEDIFF(leave_time,visit_time))/60 >10 GROUP BY user_id ORDER BY point DESC