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Home ‣ Database ‣ Database Redesign Comments
  • Question

  • Correlated subqueries are similar to a regular subquery.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Database Redesign problems

    Search Results

    • 1. The EXISTS keyword will be true if any row in the subquery meets the condition.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. Dependency graphs are diagrams that consist of nodes and arcs that show the dependencies of a database.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. A regular subquery is processed from the bottom up.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Although creating test databases is a critical and necessary job, there are few career opportunities in this area.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Typically, there should be at least two different copies of the database schema used in the redesign process.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Because of the need for extensive knowledge of SQL, many database developers choose to automate the redesign process.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. If a database is built correctly the first time, it will not have to be redesigned.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. Database redesign is especially difficult if the database has no data.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. The data model produced from the reverse engineering process is a true logical model.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A correlated subquery is processed as a nested subquery.

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

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