在mysql查詢中設置變量

Question

我正在嘗試顯示兩支球隊的正面對頭輸贏記錄，以顯示在游戲結果頁面上。 這是一個累積的計數，在各支戰隊之間的每場比賽之后都會改變。 我需要定義“ Team”和“ Opponent”變量來運行查詢，但是我似乎無法使其正常工作。 $ GameID變量通過GET方法傳遞，但是我需要將查詢的Team和Opponent變量設置為特定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中分配變量：

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