题解 | #牛客的课程订单分析(三)#

select id,user_id,product_name,status,client_id,date from
(select *,count(product_name) over (partition by user_id) as num_1
from order_info
where product_name in ('C++','Java','Python')
and status = 'completed'
and date >'2025-10-15') as a
where a.num_1 >=2
order by id ASC