A

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Q. Which operators test whether a subquery returns any rows?

  • (A) IN and NOT IN
  • (B) EXISTS and NOT EXISTS
  • (C) PRESENT
  • (D) ABSENT
  • Correct Answer - Option(B)
  • Views: 22
  • Filed under category MySQL
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Explanation by: Admin

This question is about how we check if a smaller query (called a subquery) finds any matching data. Think of it like searching for a specific book in a library.

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