题解 | #牛客的课程订单分析(三)#
牛客的课程订单分析(三)
https://www.nowcoder.com/practice/4ae8cff2505f4d7cb68fb0ec7cf80c57
select *
from order_info
where user_id in (
select user_id
from order_info
where date > '2025-10-15'
and product_name in ('Python', 'Java', 'C++')
and status = 'completed'
group by user_id
having count(date) >= 2
)
and date > '2025-10-15'
and product_name in ('Python', 'Java', 'C++')
and status = 'completed'
order by id;
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