select day(date) as day,count(question_id) as question_cnt
from question_practice_detail
where date between '2021-08-01' and '2021-08-31'
group by date;

select day(date) as day,count(question_id) as question_cnt
from question_practice_detail
where month(date)=8 and year(date)=2021
group by date;