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 device_id) did_cnt, count(device_id) question_cnt from question_practice_detail where month(date) = 8 and year(date)=2021
21年8月份练题总数
https://www.nowcoder.com/practice/b8f30b239b454ed490367b53ea95607d
select count(distinct device_id) did_cnt, count(device_id) question_cnt from question_practice_detail where month(date) = 8 and year(date)=2021
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