我有一个表，用于存储 ID、商品、食物类型、图像和价格
我想将结果限制为商店中出售的每种类型之一，例如狗粮、猫粮、DVD 按降序排列 mysql 数据库中保存的内容示例 表:Nunca
id item type image price
=========================================================
1 Pedigree Pouches dog food img1 $4.99
2 Cesar Classic Selection dog food img2 $3.99
3 Meaty Strips Chicken dog food img3 $2.99
4 Jelly Fish Selection cat food img4 $1.99
5 Bananas fruit img5 $2.84
6 Celery vegetables img6 $5.99
7 Apple fruit img7 $0.95
8 Pineapple Juice Soft drink img8 $0.99
9 Oranges fruit img9 $1.99
10 Cabbage vegetables img10 $0.99
11 Suicide Squad dvd img11 $12.99
查询的最终结果应如下所示
id item type image price
==========================================================
11 Suicide Squad dvd img11 $12.99
10 Cabbage vegetables img10 $0.99
9 Oranges fruit img9 $1.99
8 Pineapple Juice Soft drink img8 $0.99
4 Jelly Fish Selection cat food img4 $1.99
3 Meaty Strips Chicken dog food img3 $2.99
我尝试了各种mysql查询，但无济于事
最佳答案
select * from t where
id in(select max(t.id) id from t group by t.type)
order by id desc
我猜可能有窗口或连接替代方案，但这个似乎适合此目的。
关于mysql - 尝试限制 mysql 结果中显示的数量，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50321234/