DROP TABLE IF EXISTS userRole;
  DROP TABLE IF EXISTS account;

  CREATE TABLE account (
     lionID VARCHAR(50) NOT NULL,
     firstName VARCHAR(50) NOT NULL,
     hashedpass VARCHAR(255) NOT NULL,
     PRIMARY KEY (lionID)
   );

   CREATE TABLE roles (
     roleID INT UNSIGNED AUTO_INCREMENT NOT NULL,
     lionID VARCHAR(50) NOT NULL,
     administrator BOOLEAN NOT NULL DEFAULT False,
     qRole VARCHAR(255) NOT NULL,
     PRIMARY KEY (roleID),
     FOREIGN KEY (lionID) REFERENCES account(lionID)
   );

我很难理解为什么会出错。。roles中的外键lionid引用了account中的主键lionid，但它似乎不喜欢它。非常感谢您的帮助。

ERROR 1064 (42000) at line 76: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'FOREIGN KEY lionID REFERENCES account lionID'
)' at line 8