Entity Naming Guidelines and Attribute Classification
10 Questions
0 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

What three basic constructs make up the E-R model?

  • Tables, columns, rows
  • Functions, variables, loops
  • Data types, operators, conditions
  • Entities, attributes, relationships (correct)

    • In the E-R model, what is an entity type?

  • An attribute of an entity
  • A representation of an E-R diagram
  • A collection of entities sharing common properties (correct)
  • A relationship between two entities

    • Which of the following is NOT an example of an entity type?

  • CUSTOMER
  • WAREHOUSE
  • EMPLOYEE
  • SALE (correct)

    • What is the purpose of an entity in the E-R model?

    <p>To maintain data about a person or object</p> Signup and view all the answers

    Which of the following is an example of an event entity in the E-R model?

    <p>SALE</p> Signup and view all the answers

    What does an entity name represent in an E-R diagram?

    <p>A set of items</p> Signup and view all the answers

    Which of the following statements about entity types is true?

    <p>Entity types are always singular in naming.</p> Signup and view all the answers

    'STUDENT' is an example of what kind of entity in the E-R model?

    <p>Person</p> Signup and view all the answers

    What does an entity represent in the E-R model?

    <p>A person, place, object, event, or concept</p> Signup and view all the answers

    Which statement best describes an entity type in the E-R model?

    <p>A collection of entities with common characteristics</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser