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

  • In a relation, the order of the columns does not matter.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • The Relational Model and Normalization problems

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    • 1. In a relation, the rows are sometimes called "records."

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

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Any table that meets the definition of a relation is said to be in first normal form.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A relation is in Boyce-Codd Normal Form (BCNF) if every determinant is a composite key.

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Relations are categorized into normal forms according to the referential integrity constraints that they have.

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

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

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

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

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