创建表时出现mysql错误＃1064

Question

CREATE TABLE Exhibitor_Info
(Ex_id int AUTO_INCREMENT,User_id int,Category varchar(150),Description varchar(400), PRIMARY KEY(Ex_id),FOREIGN KEY(User_id));

while executing this sql I got the following error:

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 2

Can anyone help me to fix the problem

thanks

Answer 1

Add reference to foreign key by replacing

FOREIGN KEY(User_id)

with

foreign key(user_id) references referred_table(referred_col)

Answer 2

You have to add the reference to a foreign key

CREATE TABLE Exhibitor_Info (Ex_id int AUTO_INCREMENT,User_id int,Category varchar(150),Description varchar(400), PRIMARY KEY(Ex_id),FOREIGN KEY(User_id) REFERENCES referred_parent_table(referred_col) ON DELETE CASCADE);

You can have a good example here