问题
I am trying to execute this script in Oracle 11g and getting the following error, I dont know where I am missing the paranthesis or what is the mistake kindly help me figure this out.
Script:
CREATE TABLE User_Role (
user_role_id INT NOT NULL ,
Users_user_id INT FOREIGN KEY REFERENCES Users(user_id),
User_Types_user_type VARCHAR(20) FOREIGN KEY REFERENCES User_Types(user_type),
PRIMARY KEY(user_role_id)
)
Error:
ORA-00907: missing right parenthesi
回答1:
Delete FOREIGN KEY clause. Rewrite your CREATE TABLE statement as follows:
CREATE TABLE User_Role (
user_role_id INT NOT NULL ,
Users_user_id INT REFERENCES Users(user_id),
User_Types_user_type VARCHAR(20) REFERENCES User_Types(user_type),
PRIMARY KEY(user_role_id)
)
In this case constraint names will be generated by Oracle. If you want to give them more meaningful names you could write your create table statement as follows:
CREATE TABLE User_Role1 (
user_role_id INT NOT NULL ,
Users_user_id INT ,
User_Types_user_type VARCHAR(20) ,
constraint PK_YourTable PRIMARY KEY(user_role_id),
constraint FK_Table_1 foreign key(Users_user_id) REFERENCES Users(user_id),
constraint FK_Table_2 foreign key(User_Types_user_type) REFERENCES User_Types(user_type)
)
回答2:
I think you need to define the columns first and then add the FOREIGN KEY constraint in the very same manner as you are adding PRIMARY KEY constraint as below:
CREATE TABLE User_Role (
user_role_id INT NOT NULL ,
Users_user_id INT,
User_Types_user_type VARCHAR(20),
FOREIGN KEY (Users_user_id) REFERENCES Users(user_id),
FOREIGN KEY (User_Types_user_type) REFERENCES User_Types(user_type),
PRIMARY KEY(user_role_id)
)
回答3:
You can specify foreign keys inline, you just need to remove the foreign key keyword:
CREATE TABLE User_Role
(
user_role_id INT NOT NULL ,
Users_user_id INT REFERENCES Users,
User_Types_user_type VARCHAR(20) REFERENCES User_Types,
PRIMARY KEY(user_role_id)
);
SQLFiddle example: http://sqlfiddle.com/#!4/4ca9f/1
Listing the primary key columns in the "references" part is optional. If you prefer, you can also write REFERENCES Users(user_id)
This format also has the disadvantage that the constraint names will be generated by Oracle (with a meaningless name). In order to be able to properly specify a constraint name for the foreign key, you need to use the syntax in the accepted answer.
回答4:
remove the size of int and recompile
Example :-
integer (20) not null
integer not null
User_Types_user_type VARCHAR(20),
User_Types_user_type VARCHAR,
来源:https://stackoverflow.com/questions/13350419/sql-missing-right-parenthesis