题解 | 牛客的课程订单分析(三)

select id,user_id,product_name,status,client_id,date
from order_info
where user_id in 
(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
)
and date > '2025-10-15'
and status = 'completed'
and product_name in ('C++','Java','Python')
order by id