题解 | #计算用户8月每天的练题数量#
计算用户8月每天的练题数量
https://www.nowcoder.com/practice/847373e2fe8d47b4a2c294bdb5bda8b6
select day(qpd.date) day,count(qpd.question_id) question_cnt from question_practice_detail qpd where year(qpd.date) = 2021 and month(qpd.date) = 08 group by qpd.date