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Home ‣ Database ‣ Object-Oriented Database Comments
  • Question

  • An attribute's value is either a literal or an object identifier.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Object-Oriented Database problems

    Search Results

    • 1. Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A collection of literals or object types is called a bag.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. An attribute's value is always literal.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The Object Model supports different literal types, but does not support atomic literals, collection literals, and structured literals.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. ODL supports the abstract keyword for classes and operations.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Database objects are almost always transient.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The ODMG Object Model requires that a relationship be specified in both directions.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. An ordered collection of elements of the same type are called sets.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s).

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. You may specify an object identifier with only one unique tag name.

    • Options
    • A. True
    • B. False
      • Discuss

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