SQL 内连接查询

Question

我正在尝试进行内部联接，但我可以让它工作。这是我的 sql 查询

SELECT highscore.score, bruger.brugerNavn FROM highscore INNER JOIN bruger ON highscore.brugerID ON bruger.brugerID ORDER BY score DESC

我遇到了这个错误

SELECT highscore.score, bruger.brugerNavn FROM highscore INNER JOIN bruger ON highscore.brugerID ON bruger.brugerID LIMIT 0, 25
#1064 - There is an error in the SQL syntax near 'ON bruger.brugerID LIMIT 0, 25' at line 1

如有任何帮助，我将不胜感激:)

Answer 1

SELECT highscore.score, bruger.brugerNavn 
FROM highscore 
INNER JOIN bruger ON highscore.brugerID = bruger.brugerID 
ORDER BY score DESC

Answer 2

你也试试

SELECT highscore.score, bruger.brugerNavn 
FROM Highscore as highscore
INNER JOIN Bruger as burger ON highscore.brugerID = bruger.brugerID 
ORDER BY highscore.score desc

Answer 3

先试试这个：

SELECT h.score, b.brugerNavn 
FROM highscore as h
JOIN bruger as b ON h.brugerID = b.brugerID

我通常添加别名以便于处理。

Answer 4

您需要将 inner join

下的 HS.brugerID on BG.brugerID 替换为 HS.brugerID = BG.brugerID

SELECT HS.score, BG.brugerNavn 
FROM highscore as HS
INNER JOIN bruger as BG ON HS.brugerID = BG.brugerID 
ORDER BY highscore.score DESC

SQL 内连接查询

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