题解 | 简单的子查询，利用共有的device_id建立关联
浙江大学用户题目回答情况
https://www.nowcoder.com/practice/55f3d94c3f4d47b69833b335867c06c1
select device_id,question_id,result from question_practice_detail where device_id = (select device_id from user_profile where university = '浙江大学' ) order by question_id
