mysql，与最新版本截然不同

Question

我使用的是查询：

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

并获得以下结果：

# 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'

我怎么能这样做，所以我的SQL查询只返回一个玩家，日期，维生素; 对于具有最近日期的每个不同玩家？

我希望我的输出为：

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

我该怎么做？

Answer 1

您只需要汇总：

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