Question

我正在执行以下操作：

CREATE TABLE following (
    id        int(255) auto_increment not null,
    user      int(255),
    followed  int(255),
    CONSTRAINT pk_following PRIMARY KEY(id),
    CONSTRAINT fk_following_users FOREIGN KEY (user), references users(id),
    CONSTRAINT fk_followed FOREIGN KEY (followed), references users(id)
) ENGINE = InnoDb;

我收到以下错误：[异常，错误代码30.000，SQLState 42X01]语法错误：遇到＆＃34;（＆＃34;第2行，第14列。

Answer 1

int(255)。那真是怪了。只是做：

CREATE TABLE following (
    id        int auto_increment not null,
    user      int,
    followed  int,
    CONSTRAINT pk_following PRIMARY KEY(id),
    CONSTRAINT fk_following_users FOREIGN KEY (user) references users(id),
    CONSTRAINT fk_followed FOREIGN KEY (followed) references users(id)
) ENGINE = InnoDb;

我还删除了foreign key定义中不必要的逗号。

语法错误：遇到＆＃34;（＆＃34;第2行，第14列

1 个答案: