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