how to create simple stored procedure in oracle Database

SQL> CREATE OR REPLACE PROCEDURE AddNewEmployee (<br />
      p_FirstName  employee.first_name%TYPE,<br />
      p_LastName   employee.last_name%TYPE,<br />
      p_Salary      employee.salary%TYPE) AS<br />
    BEGIN     INSERT INTO employee (ID, first_name, last_name,<br />
                            salary)<br />
      VALUES (student_sequence.nextval, p_FirstName, p_LastName,<br />
             p_Salary);<br />
      COMMIT;<br />
 END AddNewEmployee;<br />
   /