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