題解 | #21年8月份練題總數(shù)#
21年8月份練題總數(shù)
http://fangfengwang8.cn/practice/b8f30b239b454ed490367b53ea95607d
select count(distinct device_id),count(question_id)
from question_practice_detail
where substring(date,7,1) = '8';
21年8月份練題總數(shù)
http://fangfengwang8.cn/practice/b8f30b239b454ed490367b53ea95607d
select count(distinct device_id),count(question_id)
from question_practice_detail
where substring(date,7,1) = '8';
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