Help me in solving GSQ09 problem

My issue

UPDATE employee
SET department =‘HR’
WHERE employee_id = 02;

My code

/*Write a query to set the Department as 'HR', for the employee with employee_id 2 to the existing table employee. */
UPDATE employee 
SET department ='HR' 
WHERE employee_id = 02;

Learning course: Learn SQL
Problem Link: CodeChef: Practical coding for everyone

– Set the Department as ‘HR’ for employee_id = 2
UPDATE employee
SET Department = ‘HR’
WHERE Employee_id = 2;

– Output all entries of the table
SELECT * FROM employee;