题解 | #牛客的课程订单分析(三)#分组计数筛选
牛客的课程订单分析(三)
https://www.nowcoder.com/practice/4ae8cff2505f4d7cb68fb0ec7cf80c57
select id,user_id,product_name,status,client_id,date from ( select *, count(status) over(partition by user_id) cnt from order_info where date>'2025-10-15' and status='completed' and product_name in ('C++','Java','Python') ) t where cnt>=2 order by id