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Home ‣ Database ‣ Object-Oriented Database Comments
  • Question

  • An attribute's value is always literal.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Object-Oriented Database problems

    Search Results

    • 1. The Object Model supports different literal types, but does not support atomic literals, collection literals, and structured literals.

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. In ODL, you specify an operation using parentheses after its name.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Before specifying a key for a class, you must specify its extent.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The ODMG Object Model supports only unary and binary relationships.

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Literals do not have identifiers, and, therefore, cannot be individually referenced like objects.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. An attribute's value is either a literal or an object identifier.

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

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

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

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