sql - SQL 查询 - 没有重复的结果

Question

我有下表，名为商店：

您能否建议查询没有与最近交货日期相关的重复“产品”结果。

谢谢

Answer 1

select product, max(delivery_date) from table
group by product

Answer 2

SELECT
product, 
MAX(delivery_date) as most_recent_delivery_date 
FROM table_name
GROUP BY product;

Answer 3

如果您只想要产品，则可以像其他答案一样使用聚合。如果你想要完整的行，那么一种方法是：

select t.*
from (select t.*,
             row_number() over (partition by product order by delivery_date desc) as seqnum
      from t
     ) t
where seqnum = 1;