Relational Data Models and Self-Describing Data Models
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Questions and Answers

What is characteristic of the conceptual schema?

  • It defines the data processing rules
  • It defines the physical storage of data
  • It describes the structure and constraints of the whole database (correct)
  • It defines data access control

    • What type of data model is typically used in a database that serves a community of users?

  • Physical data model
  • Conceptual data model (correct)
  • Logical data model
  • Self-describing data model

    • What level of data modeling is concerned with the overall structure and constraints of the database?

  • Conceptual level (correct)
  • Internal level
  • External level
  • Physical level

    • What is the purpose of a conceptual schema in a database?

    <p>To provide a common understanding of the database structure and constraints</p> Signup and view all the answers

    What type of data model is used to describe the physical storage of data?

    <p>Physical data model</p> Signup and view all the answers

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