i tried to create tables as per given in my textbook in MySQL server as follows:
create table department
(dept_name varchar(20),
building varchar(15),
budget numeric(12,2),
primary key (dept_name)
);
create table course
(course_id varchar(8),
title varchar(50),
dept_name varchar(20),
credits numeric(2,0),
primary key (course_id),
foreign key (dept_name) references department
);
the department table gets created, but an error
ERROR 1005 (HY000): Can't create table 'test.course' (errno: 150)
is displayed.
The queries seem very simple. And i am unable to find any mistake.
What can be the possible error that is preventing me to create the table?
Best Answer
You are missing column name of parent table to which your child refer, while creating child table, do like below