1. select marka, rocznik from samochody where kolor = "niebieski";
2. SELECT count(marka) from samochody where marka in ("Toyota", "Opel") and stan = "bardzo dobry";
3. update samochody set stan = "dobry" where rocznik < 2004;
4. CREATE USER 'jan'@'localhost' IDENTIFIED BY 'janKowalski1@';
5. grant select, insert, update on samochody.samochody to 'jan'@'localhost';