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 a.user_id from (
select * from order_info
where date > '2025-10-15' and status = 'completed' and product_name in ('C++', 'Python','Java')
) a group by a.user_id
having count(*) >=2
) and date > '2025-10-15' and status = 'completed' and product_name in ('C++', 'Python','Java') order by id
