sql - ORA-00907: 缺少右括号

Question

CREATE TABLE Persons (
  P_Id int NOT NULL,
  LastName varchar(255) NOT NULL,
  FirstName varchar(255),
  PRIMARY KEY (P_Id)
)

CREATE TABLE Orders (
  O_Id int NOT NULL PRIMARY KEY,
  OrderNo int NOT NULL,
  P_Id int FOREIGN KEY REFERENCES Persons(P_Id)
)

创建表订单时出现错误:

ORA-00907: missing right parenthesis

Answer 1

如果您要定义与列定义内联的外键，则不应指定 FOREIGN KEY。从定义中删除它。

尝试这个:

CREATE TABLE Orders 
( 
  O_Id int NOT NULL PRIMARY KEY, 
  OrderNo int NOT NULL,
  P_Id int REFERENCES Persons(P_Id)
)