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++","Java","Python")
group by user_id
having count(*)>=2
order by user_id ;
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