Computer Science · Database Management Systems
क्वेरी पर विचार कीजिए: SELECT itemname, color, clothesSIZE, SUM(quantity) FROM sales GROUP BY ROLLUP (itemname, color, clothesSIZE); इस ROLLUP ऑपरेशन में कुल कितने समूहन (groupings) संभव हैं?
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