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CREATE TABLE Album (
name VARCHAR(50),
lenght FLOAT,
genre VARCHAR(30),
nrSongs INT,
PRIMARY KEY (name, writer),
FOREIGN KEY (writer) REFERENCES Musician(name) OR Band(name),
FOREIGN KEY (Studio) REFERENCES Studio(name)
);
好的这就是我想要做的,音乐家或乐队,但是这给了我一个OR语句错误,你知道实现这个的正确方法吗?我找不到它。 谢谢:)在外键中创建带有两个引用的表
看看这里:http://stackoverflow.com/questions/7844460/foreign-key-to-multiple-tables – deterministicFail 2014-12-03 16:57:58