Relational Database Design Quiz
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Questions and Answers

What is the primary key in a relational database?

  • A key that can be NULL
  • A key that uniquely identifies each record in a table (correct)
  • A key that is a combination of foreign keys
  • A key that allows duplicate values

    • What is the purpose of normalization in database design?

  • To complicate the database structure
  • To allow duplicate values in tables
  • To minimize redundancy and prevent anomalies (correct)
  • To maximize redundancy for better data integrity

    • What is a foreign key in a relational database?

  • A field in a table that matches the primary key of another table (correct)
  • A key that allows duplicate values
  • A key that can be NULL
  • A key that uniquely identifies each record in a table

    • In relational database design, what does the term 'composite key' refer to?

    <p>A key that consists of multiple attributes to uniquely identify a record</p> Signup and view all the answers

    What is the purpose of integrity constraints in a relational database?

    <p>To enforce rules for data integrity and accuracy</p> Signup and view all the answers

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