I've never seen this command before and I also do not find it around here, I do not know if it has a different name and because of the Oracle documentation, I can not understand exactly how it works. I just want an explanation and a simple example of the command. Many thanks.
I would also like to know why the command below does not work (apparently it's because of b.NOM_CARRO).
SELECT b.COD_CARRO, b.NOM_CARRO FROM CARROS b MINUS SELECT a.COD_CARRO FROM VEICULOS a;