#嵌套select device_id,question_id,resultfrom question_practice_detailwhere device_id in (select device_id from user_profile where university='浙江大学')#order by question_id#连表查询select t1.device_id,t1.question_id,resultfrom question_practice_detail as t1,user_profile as t2where t1.device_id=t2.device_id a...