MySQL的，獨特的和最近的

Question

我使用的查詢：

SELECT distinct player, date, (health_base + mana_base * 2) as vit FROM dadb.player_attributes order by vit desc 

，並得到以下結果：

# player  date,     vit 
----------------------------------------------- 
'Greenslade', '2016-01-12 14:05:03', '1208252' 
'Greenslade', '2016-01-12 14:05:04', '1208252' 
'Greenslade', '2016-01-12 14:07:46', '1208252' 
'Greenslade', '2016-01-12 14:07:47', '1208252' 
'Pheresis', '2016-01-12 13:45:54', '924164' 
'Pheresis', '2016-01-12 13:45:55', '924164' 
'Pheresis', '2016-01-12 13:48:55', '924164' 
'Pheresis', '2016-01-12 13:48:56', '924164' 
'Pheresis', '2016-01-12 13:48:57', '924164' 
'Pheresis', '2016-01-12 14:04:00', '924164' 
'Pheresis', '2016-01-12 14:04:01', '924164' 

我怎樣才能使它所以我SQL查詢返回的只有一名選手，日期，維生素; 爲每個不同的球員與最近的日期？

我希望我的輸出是：

# player  date,     vit 
----------------------------------------------- 
'Greenslade', '2016-01-12 14:07:47', '1208252' 
'Pheresis', '2016-01-12 14:04:01', '924164' 

我該怎麼辦呢？

Answer 1

您只需聚集：

select player, max(date), max(health_base + mana_base * 2) as vit 
from t 
group by player 
order by vit desc;