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Home ‣ Database ‣ The Relational Model and Normalization Comments
  • Question

  • A functional dependency is always an equation.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • The Relational Model and Normalization problems

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A relation has cells that hold multi-value entries.

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

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

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

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

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. 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
    • 9. When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A ternary relationship is so called because in contains two entities and one association between them.

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

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