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(*) FROM question_practice_detail WHERE question_practice_detail.date like '2021-08%';
21年8月份练题总数
https://www.nowcoder.com/practice/b8f30b239b454ed490367b53ea95607d
SELECT count( DISTINCT device_id) did_cnt, count(*) FROM question_practice_detail WHERE question_practice_detail.date like '2021-08%';
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