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Database Systems Study Material: Certification Test 321

Specialization Learning App & e-Book: MCQ 321

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MCQ: 321

Specifying whether or not an entity in the superclass set must belong to at least one of subclass sets within specialization, by the constraint type

  1. Completeness constraint
  2. Disjointness constraint
  3. Overlapping constraint
  4. Existence constraint

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