题解 | #某乎问答单日回答问题数大于等于3个的所有用户#
某乎问答单日回答问题数大于等于3个的所有用户
https://www.nowcoder.com/practice/821e5072663f485f8204cf03b89d322a
select
answer_date,
author_id,
count(answer_date)
from
answer_tb
group by
answer_date,
author_id
having
count(answer_date) >= 3
order by
answer_date,author_id
本题难度不大,主要是having的执行顺序需要特别清楚。代码 如上
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