שליפת רשימת מספרים בלתי מוגבלת בלי להשתמש בטבלה
כדי לשלוף רשימה של מספרים (מ-1 עד אינסוף), ניתן להשתמש ב-dual בשביל זה:
select rownum from dual connect by level <= 1000;
כשה-level מוגבל על ידי המספר המקסימלי שאנחנו רוצים לקבל.
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