create or replace
TYPE student_object AS OBJECT
(IDSTUDENT number,
 STUDENT_FIRSTNAME varchar2(30),
 STUDENT_LASTNAME varchar2(30),
 USERNAME varchar2(30),
 PASSWORD varchar2(30),
 STUDENT_CMND varchar2(30),
 GENDER number,
 BIRTHDAY date,

member function enlarge return student_object,
 NOT FINAL member procedure display) NOT FINAL;
 //
 create or replace
TYPE BODY student_object AS
   MEMBER FUNCTION enlarge return student_object IS
   BEGIN
      return student_object(self.IDSTUDENT, self.STUDENT_FIRSTNAME,self.STUDENT_LASTNAME,self.USERNAME, self.PASSWORD,self.STUDENT_CMND,self.GENDER, self.BIRTHDAY);
   END enlarge;
   MEMBER PROCEDURE display IS
   BEGIN
      dbms_output.put_line('ID: '|| IDSTUDENT);
      dbms_output.put_line('STUDENT_FIRSTNAME : '|| STUDENT_FIRSTNAME);
      dbms_output.put_line('STUDENT_LASTNAME : '|| STUDENT_LASTNAME);
      dbms_output.put_line('USERNAME : '|| USERNAME);
      dbms_output.put_line('PASSWORD: '|| PASSWORD);
      dbms_output.put_line('STUDENT_CMND: '|| STUDENT_CMND);
      dbms_output.put_line('GENDER : '|| GENDER);
      dbms_output.put_line('BIRTHDAY : '|| BIRTHDAY);
   END display;
END;