extended er features

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In user-defined constraints on generalization, lower level entity sets can be of type

In user-defined constraints on generalization, lower level entity sets can be of type
  • A. 2 types
  • B. 3 types
  • C. 4 types
  • D. 5 types
  • Correct Answer: Option A

Like attribute inheritance, inheritance that applies through all tiers of lower-level entity sets, is known to be

Like attribute inheritance, inheritance that applies through all tiers of lower-level entity sets, is known to be
  • A. Participation inheritance
  • B. Execution inheritance
  • C. Existence inheritance
  • D. Dependency inheritance
  • Correct Answer: Option A