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