# select device_id,question_id,result # from question_practice_detail # where device_id in # (select device_id from user_profile where university = '浙江大学') # order by question_id; select t1.device_id,question_id,result from question_practice_detail t1 left join user_profile t2 on t1.device_id = t2.device_id where university = '浙江大学';