题解 | #对顾客ID和日期排序#
对顾客ID和日期排序
https://www.nowcoder.com/practice/fa4eb4880d124a4ead7a9b025fe75b70
select -- 从所有列中过滤出两列
cust_id,
order_num
from
(
select
*
from
Orders
order by
cust_id,
order_date desc
) temp -- 子查询按照客户Id和时间排序，并返回所有列
