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;