insert into grupa
    -> (Nazwisko,Imie,Pensja,Datazat,Pesel)
    -> values
    -> ('Cabacki','Caba',4000,'1969-04-20','49010111111'),
    -> ('Babacka','Milena',4000,'1969-04-20','52020222101'),
    -> ('Babacki','Jozef',2400,'1995-03-31','75111123131'),
    -> ('Babacka','Milena',3100,'1989-02-13','69040411121'),
    -> ('Abacki','Mosiek',2500,'1989-03-31','69050511151'),
    -> ('Abacki','Abislaw',NULL,'1999-02-20','38073111171'),
    -> ('Babacka','Liliana',4000,'1969-04-20','38072312141'),
    -> ('Babacki','Jozef',1500,'1983-12-19','79080821191'),
    -> ('Abacka','Abana',3000,'1989-10-30','79080823161'),
    -> ('Abacki','Abislaw',2000,'1994-01-10','74101032111'),
    -> ('Abacka','Lubiana',1500,'1983-12-19','63111145181'),
    -> ('Babacki','Boleslaw',5000,'1964-06-16','38072311311');