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
