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
https://www.nowcoder.com/practice/55f3d94c3f4d47b69833b335867c06c1
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');
方法2：
SELECT qpd.device_id, qpd.question_id, qpd.result FROM question_practice_detail AS qpd INNER JOIN user_profile AS up ON up.device_id = qpd.device_id AND up.university = '浙江大学';
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