要求:在2025-10-15以后,如果有一个用户下单2个以及2个以上状态为购买成功的C++课程或Java课程或Python课程,那么输出这个用户的user_id,以及满足前面条件的第一次购买成功的C++课程或Java课程或Python课程的日期first_buy_date!

select user_id, min(date) as first_buy_date, count(user_id) as cnt 
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) > 1
order by user_id;