Qual comando SQL será executado com sucesso, independente...

INSERT INTO CATEGORIA (DESCR,VAL_DIARIA,COD_CAT)

DELETE FROM CATEGORIA X WHERE

NOT EXISTS (SELECT COUNT(*)

FROM VEICULO V,ALUGUEL A

WHERE V.COD_CAT=X.COD_CAT AND V.PLACA=A.PLACA AND

A.DATA_DEV IS NOT NULL

GROUP BY V.COD_CAT)

INSERT INTO ALUGUEL VALUES (ʹLJJ2222ʹ,120618)

DELETE FROM VEICULO X WHERE

NOT EXISTS (SELECT COUNT(*)

FROM ALUGUEL A

WHERE X.PLACA=A.PLACA AND

A.DATA_DEV IS NOT NULL

GROUP BY A.PLACA)

UPDATE VEICULO X SET COD_CAT=ʹxsʹ WHERE

EXISTS (SELECT COUNT(*)

FROM VEICULO V,ALUGUEL A

WHERE V.COD_CAT=ʹxsʹ AND V.PLACA=A.PLACA AND

A.DATA_DEV IS NOT NULL

GROUP BY V.COD_CAT)