Database Design
3 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following statements is true about attributes?

  • Attributes can only be optional.
  • Domains are not related to attributes.
  • Attributes can be simple or composite (correct)
  • Primary keys identify sets of possible values for attributes.
  • Which of the following is true about multi-valued attributes?

  • They are implemented in RDBMS.
  • They should not be implemented in RDBMS. (correct)
  • They are made up of more than one attribute
  • They can only have one value
  • What are derived attributes?

  • Attributes that are required
  • Attributes that are calculated from other attributes. (correct)
  • Attributes that are made up of more than one attribute
  • Attributes that identify entity instances.
  • Study Notes

    1. Attributes can be required or optional.
    2. Domains are sets of possible values for attributes.
    3. Primary keys uniquely identify entity instances.
    4. Composite identifiers are made up of more than one attribute.
    5. Attributes can be simple or composite.
    6. Single-valued attributes can only have one value.
    7. Multi-valued attributes have many values but should not be implemented in RDBMS.
    8. Implementing multi-valued attributes involves creating new attributes or entities.
    9. Derived attributes are calculated from other attributes.
    10. Computed attributes can be simple or complex.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge of database design with this quiz on entity attributes. From understanding the difference between required and optional attributes to identifying primary keys and composite identifiers, this quiz covers the essentials. You'll also learn about domains, multi-valued attributes, and computed attributes. Sharpen your database design skills and take the quiz now.

    More Like This

    Use Quizgecko on...
    Browser
    Browser