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Question 126Asked in CIL MT Systems, 24 Aug 2026 (3:00 PM, CBT-26)

Which operation in Relational Algebra is used to retrieve specific columns from a relation?

  1. ACartesian Product (×)
  2. BProjection (π)
  3. CSelection (σ)
  4. DIntersection (∩)
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Correct answer: (B) Projection (π)

From CIL MT Systems PYQ, 24 Aug 2026 (3:00 PM, CBT-26)

This is question 126 of CIL MT Systems PYQ, 24 Aug 2026 (3:00 PM, CBT-26). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.