MySQL 产生随机日期
update user_detail set update_time = SUBDATE(SUBDATE(now(),interval CEIL(RAND()* 10000) SECOND),INTERVAL CEIL(RAND()* 100000) MINUTE)
MySQL 产生随机日期
update user_detail set update_time = SUBDATE(SUBDATE(now(),interval CEIL(RAND()* 10000) SECOND),INTERVAL CEIL(RAND()* 100000) MINUTE)