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