Mysql体育联盟表

Question

我正在创建一个体育网页，我已经达到了我无法解决自己的问题。

我的问题是，我不知道如何在每个比赛日之后分别存储每个球队的位置。以下是我想要实现：

为了创建排名表我有两个表：

俱乐部：id_clubs，名
结果：matchid，比赛日，hometeam，awayteam，homegoals， awaygoals，日期，id_league

结果表中创建我的排名表是设置这样的：

SELECT 
    name AS Team, 
    Sum(P) AS P, 
    Sum(W) AS W, 
    Sum(D) AS D, 
    Sum(L) AS L, 
    SUM(F) as F, 
    SUM(A) AS A, 
    SUM(GD) AS GD, 
    SUM(Pts) AS Pts 
FROM ( 
    SELECT *, 
     hometeamid Team, 
     1 P, 
     IF(homegoal > awaygoal,1,0) W, 
     IF(homegoal = awaygoal,1,0) D, 
     IF(homegoal < awaygoal,1,0) L, 
     homegoal F, 
     awaygoal A, 
     homegoal-awaygoal GD, 
     CASE WHEN homegoal > awaygoal THEN 3 
      WHEN hometeam = awaygoal THEN 1 
      ELSE 0 
     END PTS 
    FROM results 
    WHERE id_league = '$leagueid' 
     AND homegoal IS NOT NULL 
     AND awaygoal IS NOT NULL 

    UNION ALL 

    SELECT *, 
     awayteamid, 
     1, 
     IF(homegoal < awaygoal,1,0), 
     IF(homegoal = awaygoal,1,0), 
     IF(homegoal > awaygoal,1,0), 
     awaygoal, 
     homegoal, 
     awaygoal-homegoal GD, 
     CASE WHEN homegoal < awaygoal THEN 3 
      WHEN homegoal = awaygoal THEN 1 
      ELSE 0 
     END 
     FROM results 
     WHERE id_league = '$leagueid' 
      AND awaygoal IS NOT NULL 
      AND homegoal IS NOT NULL 
) AS tot 
JOIN clubs t ON tot.Team=t.id_clubs 
GROUP BY Team 
ORDER BY 
    SUM(Pts) desc, 
    SUM(GD) desc 

希望有人可以提供一些提示或解决方案。

Answer 1

如果您对您造成表中检索顺序号的问题，这里是一个类似的讨论，这可能是您需要的东西：MySQL - Get row number on select

要选择第一n比赛中，你可以通过匹配ID分组后做LIMIT n 。