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True/False Questions for Entity Relationship Model

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  • 1 An output of the database system (for example a report) cannot be selected as an entity. True View Answer

  • 2 All updates to a base relation should immediately reflected in views which uses this base relation. True View Answer

  • 3 One to one relationship exists between superclass and subclass in the EER model. True View Answer

  • 4 When complex relationship is resolved to a new relation. The primary keys of participating entities cannot be copied to the new relation. False View Answer

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