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Database Systems Entrance Exam: Certification Test 1128

Relational Algebra Quiz App & e-Book: MCQ 1128

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MCQ: 1128

Incase of a union operation r ∪ s to be valid, the number of conditions required, are

  1. Two
  2. Three
  3. Four
  4. Five

Relational Algebra Textbook Tests: Database Systems App & eBook Quiz

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Relational Algebra Quiz App (iOS & Android)

Relational Algebra Quiz App

DBMS Quiz App (Android & iOS)

DBMS Quiz App

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Computer Fundamentals Quiz App

Operating Systems Quiz App (Android & iOS)

Operating Systems Quiz App