{CodeRoyale}
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Multiple ChoiceBeginner 30s

GROUP BY

Choose the best answer for: GROUP BY clause
Options
  1. 1GROUP BY sorts the result by the grouped columns
  2. 2GROUP BY is for JOINs only and cannot stand alone
  3. 3GROUP BY filters rows before aggregation applies
  4. 4GROUP BY groups rows with same values for aggregation
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