按重要性相等的两列对MySQL表进行排序

我有一个两人游戏，把分数存储在一张桌子上

我想从表中选择高分，这是我当前的代码：

从游戏中选择* 按大玩家1分数排序，玩家2核心描述 限制10

问题是，它只返回每行的一个实例，即使例如，第1行中的两个分数中较低的一个可以被列入前10名。

使用UNION ALL:

( SELECT *, player1Score as score
  FROM games 
  ORDER BY score DESC 
  LIMIT 10
)
UNION ALL
( SELECT *, player2Score AS score 
  FROM games 
  ORDER BY score DESC 
  LIMIT 10
)
ORDER BY score DESC
LIMIT 10

---

另外，不要使用SELECT*。明确列出列。

即使只有两个用户，您也最好创建一个players表和一个join表。然后，您可以轻松地创建一个查询来执行您试图执行的操作。当然，修改更新/保存函数以匹配新模式需要一点时间

players
-----
playerId
playerName

joinPlayerGame
-----
joinId
playerId
gameId

games
-----
modify the player score fields to just be 'score'

SELECT g.*, p.playerName FROM players p INNER JOIN joinPlayerGame j ON j.playerId = p.playerId INNER JOIN games g ON g.<whatever your key is> = j.gameId ORDER BY g.score DESC LIMIT 10

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我希望这有帮助，祝你好运

表中有多少行？您是否需要关注性能？你有player1Score或player2Score的索引吗？

players
-----
playerId
playerName

joinPlayerGame
-----
joinId
playerId
gameId

games
-----
modify the player score fields to just be 'score'

SELECT g.*, p.playerName FROM players p INNER JOIN joinPlayerGame j ON j.playerId = p.playerId INNER JOIN games g ON g.<whatever your key is> = j.gameId ORDER BY g.score DESC LIMIT 10