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Home ‣ Database ‣ The Relational Model and Normalization See What Others Are Saying!
  • Question

  • A tuple is a(n):


  • Options
  • A. column of a table.
  • B. two dimensional table.
  • C. row of a table.
  • D. key of a table.

  • Correct Answer
  • row of a table. 

    • More questions

    • 1. An Enterprise Resource Planning application is an example of a(n) ________ .

    • Options
    • A. single-user database application
    • B. multiuser database application
    • C. e-commerce database application
    • D. data mining database application
      • Discuss
    • 2. Relations are:

    • Options
    • A. two-dimensional tables.
    • B. three-dimensional tables.
    • C. four-dimensional tables.
    • D. five-dimensional tables.
      • Discuss
    • 3. If any required (NOT NULL) columns are missing from the view, the view cannot be used for inserting new data.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.

    • Options
    • A. ONLY
    • B. UNIQUE
    • C. DISTINCT
    • D. SINGLE
      • Discuss
    • 5. A composite attribute does not get mapped into a relation.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A collection of literals or object types is called a bag.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. SQL Server indexes are special data structures used to improve performance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A data source is an ODBC data structure that identifies a database and the DBMS that processes it.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. A recursive relationship is a relationship between an archetype and an instance of that archetype.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Data processing logic includes such activities as data validation and identification of processing errors.

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

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