题解 | #牛客的课程订单分析(六)#
牛客的课程订单分析(六)
https://www.nowcoder.com/practice/c5736983c322483e9f269dd23bdf2f6f
select t1.id id,is_group_buy,name client_name
from(select *
from(select *,count(user_id)over(partition by user_id) cn
from order_info
where date>'2025-10-15' and status='completed' and product_name in ('C++','Java','Python')) t
where cn>=2) t1 left join client c on t1.client_id=c.id
order by t1.id
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