题解 | #计算用户8月每天的练题数量#
计算用户8月每天的练题数量
http://www.nowcoder.com/practice/847373e2fe8d47b4a2c294bdb5bda8b6
select extract(day from date) as day,
count(*) as question_cnt
from question_practice_detail
where extract(month from date) =8
group by date
计算用户8月每天的练题数量
http://www.nowcoder.com/practice/847373e2fe8d47b4a2c294bdb5bda8b6
select extract(day from date) as day,
count(*) as question_cnt
from question_practice_detail
where extract(month from date) =8
group by date
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