BD關係的MySQL

Question

我有以下關係，

，並想知道我怎麼能得到球隊一場比賽的贏家？

Answer 1

SELECT 
    m.id_match, 
    IF((id_home_team = ? AND score_home_team > score_away_team) OR 
    (id_away_team = ? AND score_home_team < score_away_team), 1, 0) AS won 
FROM matches m 
    JOIN results r ON(r.id_match = m.id_match) 
WHERE 
    id_home_team = ? OR id_away_team = ? 

將?替換爲您的團隊ID。

在SQL Fiddle。