1.  SELECT imie, miot FROM swinki WHERE data_ur BETWEEN "2022-07-01" AND "2022-07-31";
2. SELECT DISTINCT s.data_ur, s.miot, r.rasa FROM swinki as s, rasy as r WHERE r.id=1 AND r.id=s.rasy_id;
3. SELECT imie, cena, opis  FROM swinki WHERE rasy_id=1;
4. SELECT rasa FROM rasy;