Oracle版本演变史：跟随Oracle版本发展脉络，掌握最新动向！

CREATE OR REPLACE PROCEDURE get_employee_name (employee_id IN INTEGER) AS
  employee_name VARCHAR2(50);
BEGIN
  SELECT first_name INTO employee_name
  FROM employees
  WHERE employee_id = employee_id;
  DBMS_OUTPUT.PUT_LINE(\'Employee name: \' || employee_name);
END;
/