Exit the Loop in PL/SQL

IF and EXIT:
DECLARE
credit_rating NUMBER := 0;
BEGIN
LOOP
credit_rating := credit_rating + 1;
IF credit_rating > 3 THEN
EXIT; -- exit loop immediately
END IF;
END LOOP;
END;
/

EXIT and WHEN:
DECLARE
credit_rating NUMBER := 0;
BEGIN
LOOP
credit_rating := credit_rating + 1;
EXIT WHEN credit_rating > 3; -- exit loop immediately
END LOOP;
END;
/