题解 | 浙江大学用户题目回答情况

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;
# 或
select qpd.device_id,question_id,result
from question_practice_detail  qpd join  user_profile up on qpd.device_id=up.device_id and up.university='浙江大学'
order by question_id;