SQL多次选择一列

Question

所以我有两张桌子：

create table teams(
teamShortName varchar(3) not null,
teamLongName varchar(35) not null,
PRIMARY KEY(teamShortName)
)

create table results(
matchID int identity(1,1)
homeTeam varchar(3) not null references teams(teamShortName),
awayTeam varchar(3) not null references teams(teamShortName),
homeTeamGoals int not null,
awayTeamGoals int not null,
PRIMARY KEY(matchID)
)

现在我想创建可以给我结果但使用 teamLongNames 的视图/选择...

尝试了一些东西，但没有成功 - 主队和客队的名称相同/双方都为空值

数据看起来像这样

teamShortName     teamLongName
     RMD         FC Real Madrid
     FCB         FC Barcelona

matchID     homeTeam   awayTeam   homeTeamGoals   awayTeamGoals
   1           RMD        FCB           2               2

结果应该是这样的

    Home        HomeGoals        AwayGoals        Away
FC Real Madrid      2                2         FC Barcelona

谢谢你帮助我:)

Answer 1

使用别名，你可以链接表两次

SELECT HT.teamLongName, homeTeamGoals, aT.teamLongName, awayTeamGoals
FROM results INNER JOIN teams HT on  homeTeam = HT.teamShortName
INNER JOIN teams AT ON awayTeam = AT.teamShortName