mysql 三天前数据

DELETE FROM user_sect  WHERE user_status = 1 and create_time <= DATE_SUB(CURDATE(),INTERVAL 2 DAY);SELECT * FROM user_sect  WHERE user_status = 1 and create_time <= DATE_SUB(CURDATE(),INTERVAL 2 DAY);from user_sect where user_status = 1 and id = " + id + "  and DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= last_modified_time  order by create_time desc

如果要3天前（即保留今天，昨天，前天的数据） --------------->  interval 1 day