/* wypisz nazwiska osob zarabiajacych najmniej w najmniej licznym departamencie*/
Select id_pracownika, nazwisko from pracownik where pensja+premia =(Select min(pensja + premia) from pracownik where nr_departamentu = (SELECT nr_departamentu from pracownik group BY nr_departamentu order BY COUNT(id_pracownika) limit 1));
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