题解 | #21年8月份练题总数#
21年8月份练题总数
https://www.nowcoder.com/practice/b8f30b239b454ed490367b53ea95607d
select count(distinct qpd.device_id),count(qpd.question_id) from question_practice_detail qpd where month(qpd.date)=8;
21年8月份练题总数
https://www.nowcoder.com/practice/b8f30b239b454ed490367b53ea95607d
select count(distinct qpd.device_id),count(qpd.question_id) from question_practice_detail qpd where month(qpd.date)=8;
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