SQL 错误 : ORA-00907: missing right parenthesis 00907. 00000 - "missing right parenthesis"

Question

使用 sqldeveloper 创建这些表时出现缺少右括号的错误

 CREATE TABLE users (
  USER_ID INT(10) UNSIGNED NOT NULL,
  USERNAME VARCHAR(45) NOT NULL,
  PASSWORD VARCHAR(45) NOT NULL,
  ENABLED tinyint(1) NOT NULL,
  PRIMARY KEY (USER_ID)
);
CREATE TABLE user_roles (
  USER_ROLE_ID INT(10) UNSIGNED NOT NULL,
  USER_ID INT(10) UNSIGNED NOT NULL,
  AUTHORITY VARCHAR(45) NOT NULL,
  PRIMARY KEY (USER_ROLE_ID),
  KEY FK_user_roles (USER_ID),
  CONSTRAINT FK_user_roles FOREIGN KEY (USER_ID) 
  REFERENCES users (USER_ID)
);

更新...我修改了数据类型，但出现同样的错误

CREATE TABLE users (
  USER_ID NUMBER(10,0) UNSIGNED NOT NULL,
  USERNAME VARCHAR2(45) NOT NULL,
  PASSWORD VARCHAR2(45) NOT NULL,
  ENABLED NUMBER(3,0) NOT NULL,
  PRIMARY KEY (USER_ID)
);
CREATE TABLE user_roles (
  USER_ROLE_ID NUMBER(10,0) UNSIGNED NOT NULL,
  USER_ID NUMBER(10,0) UNSIGNED NOT NULL,
  AUTHORITY VARCHAR2(45) NOT NULL,
  PRIMARY KEY (USER_ROLE_ID),
  KEY FK_user_roles (USER_ID),
  CONSTRAINT FK_user_roles FOREIGN KEY (USER_ID) 
  REFERENCES users (USER_ID)
);

Answer 1

• Oracle 不支持UNSIGNED。

• KEY FK_user_roles (USER_ID)

  is syntactically incorrect.

Create the tables as shown below:

SQL> CREATE TABLE users (
  2    USER_ID NUMBER(10,0)  NOT NULL,
  3    USERNAME VARCHAR2(45) NOT NULL,
  4    PASSWORD VARCHAR2(45) NOT NULL,
  5    ENABLED NUMBER(3,0) NOT NULL,
  6    PRIMARY KEY (USER_ID)
  7  );

Table created.

SQL> CREATE TABLE user_roles (
  2    USER_ROLE_ID NUMBER(10,0)  NOT NULL,
  3    USER_ID NUMBER(10,0)  NOT NULL,
  4    AUTHORITY VARCHAR2(45) NOT NULL,
  5    PRIMARY KEY (USER_ROLE_ID),
  6    CONSTRAINT FK_user_roles FOREIGN KEY (USER_ID)
  7    REFERENCES users (USER_ID)
  8  );

Table created.

SQL>