Practice Multivalued Dependency (mvd) Definition (6.5.1) - Normalization
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Multivalued Dependency (MVD) Definition

Practice - Multivalued Dependency (MVD) Definition

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Practice Questions

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Question 1 Easy

What is a multivalued dependency?

💡 Hint: Think about how we connect attributes with multiple values.

Question 2 Easy

Explain Fourth Normal Form (4NF) simply.

💡 Hint: Remember the connection between BCNF and 4NF.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does an MVD indicate about the relationship between attributes?

There is only one value per attribute
Multiple values are independent of each other
There is a direct dependency

💡 Hint: Consider the example of hobbies and languages.

Question 2

True or False: A relation in 4NF may still exhibit multivalued dependencies.

True
False

💡 Hint: Remember how 4NF is defined.

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Challenge Problems

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Challenge 1 Hard

Consider a multivalued relationship table involving 'Employee_Skill_Language'. Each employee has multiple skills and speaks multiple languages. How would you decompose this table to 4NF?

💡 Hint: Identify the independent attributes and separate them.

Challenge 2 Hard

Given a table with MVDs causing redundancy, how would you identify and eliminate these dependencies effectively?

💡 Hint: Focus on the independence of facts associated with each key.

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