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Multiple ChoiceIntermediate 30s

GROUP BY and HAVING

Choose the best answer for: aggregation
Options
  1. 1GROUP BY groups rows; HAVING filters grouped results
  2. 2Only used for sorting the result set, never for aggregating rows
  3. 3Neither clause supports aggregation over grouped result rows ever
  4. 4Same as WHERE, applied after aggregation with identical semantics

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