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Home ‣ Database ‣ Managing Databases with Oracle See What Others Are Saying!
  • Question

  • Oracle maintains a System Change Number (SCN) which is a database-wide value that is incremented by Oracle whenever database changes are made.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • More questions

    • 1. Which one of the following symbols is not used in an ERD?

    • Options
    • A. Rectangle
    • B. Oval
    • C. Diamond
    • D. Circle
      • Discuss
    • 2. Data in operational systems are typically fragmented and inconsistent.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. VBScript is similar to JavaScript.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Successful data warehousing requires that a formal program in total quality management (TQM) be implemented.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The HAVING clause acts like a WHERE clause, but it identifies groups that meet a criterion, rather than rows.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The source of the data is sometimes called the system of record.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. All primary keys are required.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. Entities use identifiers while tables use keys.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. SOAP is now just a name, not an acronym.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A function returns one value and has only output parameters.

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

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