题解 | #浙江大学用户题目回答情况#
浙江大学用户题目回答情况
http://www.nowcoder.com/practice/55f3d94c3f4d47b69833b335867c06c1
select u.device_id, q.question_id,q.result from user_profile as u, question_practice_detail as q where u.device_id = q.device_id and university='浙江大学'