1. SELECT imie, miot FROM swinki WHERE data_ur LIKE "%-07-%";
2. SELECT DISTINCT data_ur, miot, rasa FROM swinki JOIN rasy ON rasy_id = rasy.id WHERE rasy_id = 1;
3. SELECT imie, cena, opis FROM swinki WHERE rasy_id = 1;
4. SELECT rasa FROM rasy;