Practice Third Normal Form (3NF) - 6.4.3 | Module 6: Normalization | Introduction to Database Systems
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is Third Normal Form (3NF)?

πŸ’‘ Hint: What does it mean for an attribute to depend only on the primary key?

Question 2

Easy

Give one example of a transitive dependency.

πŸ’‘ Hint: Think of how one attribute can reveal information about another.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is a transitive dependency?

  • A direct dependency on a primary key
  • An indirect dependency through another attribute
  • A relationship between two non-key attributes

πŸ’‘ Hint: Think about how attributes might influence each other.

Question 2

True or False: In 3NF, non-key attributes can depend on other non-key attributes.

  • True
  • False

πŸ’‘ Hint: Remember the definition of 3NF.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given an inventory table with ProductID, ProductName, OrderID, OrderQuantity, and CustomerName, identify potential transitive dependencies and propose a normalization strategy.

πŸ’‘ Hint: Look for any attributes that aren't dependent directly on the primary key.

Question 2

Analyze a school database table including StudentID, StudentName, CourseID, CourseTitle, InstructorName, and InstructorDept. Find any violations of 3NF and provide a normalization plan.

πŸ’‘ Hint: Identify all dependencies that create indirect relations to ensure appropriate separation.

Challenge and get performance evaluation