Practice - Armstrong's Axioms
Practice Questions
Test your understanding with targeted questions
What is the Reflexivity rule in functional dependencies?
💡 Hint: Think about subsets and how knowing more inherently includes knowing less.
Give an example of the Augmentation Rule.
💡 Hint: Consider if adding attributes changes what is already known.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Reflexivity Rule state?
💡 Hint: Remember subsets and how they relate.
Which rule states that if A→B, then AC→BC also holds?
💡 Hint: Think about enhancement without change.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
You have the functional dependencies: CourseID → Instructor, Instructor → Department. Can you demonstrate the use of Transitivity to draw a new conclusion?
💡 Hint: Look for linking attributes between the dependencies!
If A→BC holds, how do you show the practical uses of the Decomposition Rule? Create a scenario to illustrate.
💡 Hint: Think about how distinct relationships affect database clarity.
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Reference links
Supplementary resources to enhance your learning experience.