mysql - 在mysql查询中设置变量

Question

我正在尝试显示两支球队的正面交锋胜负记录，以显示在比赛结果页面上。这是一个累计得分，在参赛球队之间的每场比赛后都会发生变化。我需要定义“团队”和“对手”变量来运行查询，但我似乎无法让它工作。 $GameID 变量通过 GET 方法传递，但我需要将查询的 Team 和 Opponent 变量设置为特定 GameID 的 Team 和 Opponent。

SELECT @team := Team, @opponent := Opponent FROM MatchDetails2017 WHERE GameID = $GameID AND HA = 'H')

                                            SELECT @Team, @Opponent,
                                            COUNT(*) AS Played,
                                            SUM(WL LIKE 'W%') AS Won,
                                            SUM(WL LIKE 'L%') AS Lost,
                                            SUM(WL = 'D') AS Drawn 
                                            FROM MatchDetails2017 
                                            WHERE Team = '@Team'
                                            AND Opponent = '@Opponent'
                                            AND GameID <= $GameID
                                            ");

Answer 1

在MYSQL中分配变量:

select @var1:= column1,@var2:=column2  from yourtable;
select @var1,@var2