一个查询中包含多个Select语句-PHP + MySQL

Question

桌子：球员：ID（PK），名字，队，位置

对战：matchupID（PK），player1ID，player2ID
player1ID和2是Players.ID的FK。

我想在拉动时选择两个玩家的名字，但无法正确查询。 我不想在这里建立工会。

与此类似，对于格式化两个表，我也提出了更好的建议。

$queryString = "SELECT Players.name FROM Players
                    INNER JOIN Matchup WHERE Players.ID = player1ID,
                    SELECT Players.name FROM Players
                    INNER JOIN Matchup WHERE Players.ID = player2ID";

Answer 1

你应该参加两次球员而不是对决

  $queryString = "select a.name, b.name from Matchup as c
            Inner Join Players as a on c.player1ID = a.ID
            Inner Join Players as b on c.player2ID  = b.ID";