Practice Trivial And Non-trivial Functional Dependencies (6.2.2) - Normalization
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Trivial and Non-Trivial Functional Dependencies

Practice - Trivial and Non-Trivial Functional Dependencies

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define trivial functional dependency.

💡 Hint: Think about relationships where knowing one attribute gives no new information.

Question 2 Easy

What is a non-trivial functional dependency?

💡 Hint: Consider examples where one attribute directly tells you something about another attribute.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a trivial functional dependency?

A dependency providing new information
A dependency where B is a subset of A
A dependency with no relationship

💡 Hint: Think about trivial mathematical truths.

Question 2

Is CourseID → CourseTitle a trivial or non-trivial functional dependency?

True
False

💡 Hint: Think about the information you gain when knowing one value.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Consider a relation: StudentID, CourseID, InstructorName. Define two FDs. Classify them as trivial or non-trivial and explain your reasoning.

💡 Hint: Evaluate the dependency to see if one attribute gives new information.

Challenge 2 Hard

Propose a database schema where understanding trivial and non-trivial dependencies would be required to normalize it properly. Discuss the implications.

💡 Hint: Think of what relationships might overlap.

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Reference links

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