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Home Database The Relational Model and Normalization Comments

  • Question
  • Relations are categorized into normal forms according to the referential integrity constraints that they have.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 


  • The Relational Model and Normalization problems


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    • 1. A relation has cells that hold multi-value entries.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. In a relation, the order of the columns does not matter.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. In a relation, the rows are sometimes called "records."

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. Given the functional dependency R ? S , R is called the determinant.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. In a relation, the order of the rows matters.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. A functional dependency is always an equation.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. A key is a group of one or more attributes that uniquely identifies a row.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. In a relation, the columns are sometimes called "attributes."

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.

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


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