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 order_info
where date>'2025-10-15' and status='completed' and product_name in ('C++','Python','Java')
group by user_id
having count(user_id)>=2
order by user_id asc;
