题解 | 牛客的课程订单分析(二)
牛客的课程订单分析(二)
https://www.nowcoder.com/practice/4ca4137cb490420cad06d2147ae67456
select user_id from order_info where date > '2025-10-15' and status = 'completed' and (product_name in ('Java', 'C++', 'Python')) group by user_id having count(user_id) >= 2 order by user_id asc