mysql - mySQL - 具有多个字段的子查询

Question

我有 2 张桌子。

表匹配

id | TeamA    | TeamB
--------------
1  | Barça    | Madrid
2  | Valencia | Depotivo

餐桌付款

idMatch | User  | Quantity
---------------------------
1       | Me    | 50
2       | Me    | 100

然后在一个查询中，我想获取 TeamA、TeamB、User 和 Quantity（如果它们具有相同的 ID）。

我已经尝试过了，但它失败了。

SELECT TeamA, TeamB FROM Matches WHERE id IN (SELECT idMatch, TeamA, TeamB FROM Payments)

score 2 · Accepted Answer

尝试这个

 SELECT TeamA, TeamB ,User  , Quantity FROM Matches m
 inner join Payments p
 on p.idMatch = m.id
 WHERE id IN 
 (SELECT idMatch FROM Payments)

score 2 · Accepted Answer

你可以使用连接

select Matches.TeamA,Matches.TeamB,Payments.User,Payments.Quantity from Matches,Payments where Matches.id=Payments.idMatch

score 2 · Accepted Answer

尝试这个

SELECT payments.user,
    payments.quantity
FROM
     Payments
     INNER JOIN Matches ON (Matches.id = Payments.idMatch);

score 1 · Accepted Answer

IN() 应该包含一个值列表，例如IN('red','green','blue')or IN(1,3,53)。SELECT 很好，但它必须返回一个字段。这会奏效。

SELECT TeamA, TeamB FROM Matches
WHERE id IN (
   SELECT idMatch FROM Payments
)

但是，您似乎想要实现需要 JOIN 或 GROUP BY 的目标。

score 1 · Accepted Answer

尝试

SELECT 
    TeamA, 
    TeamB,
    payments.user,
    payments.quantity
FROM 
    matches
    JOIN payments ON ( matches.id = payments.matchid )

score 0 · Accepted Answer

select m.TeamA,m.TeamB,p.`User`,p.Quantity from matches m INNER join
payments p where p.idMatch=m.id

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