1. SELECT wzor, cena FROM tatuaze WHERE kolor = 'czarny' AND cena > 100 ORDER BY cena DESC;
2. SELECT kolor, COUNT(*) FROM tatuaze GROUP BY kolor;
3. SELECT tatuaze.wzor, style.nazwa FROM tatuaze INNER JOIN style ON tatuaze.style_id = style.id WHERE tatuaze.kolor = 'zielony';
4. UPDATE tatuaze SET cena = cena * 1.10 WHERE kolor = 'czerwony';
