在mysql查询中设置变量

Question

我正在尝试显示两支球队的正面对头输赢记录，以显示在游戏结果页面上。 这是一个累积的计数，在各支战队之间的每场比赛之后都会改变。 我需要定义“ Team”和“ Opponent”变量来运行查询，但是我似乎无法使其正常工作。 $ GameID变量通过GET方法传递，但是我需要将查询的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