Practice Second Normal Form (2nf) (6.4.2) - Normalization - Introduction to Database Systems
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Second Normal Form (2NF)

Practice - Second Normal Form (2NF)

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Practice Questions

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Question 1 Easy

What is Second Normal Form (2NF)?

💡 Hint: Think about how attributes relate to the whole key.

Question 2 Easy

Why is it important to eliminate partial dependencies?

💡 Hint: Consider what happens during updates or deletions.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does it mean if a table is in 2NF?

All attributes depend on the primary key
No partial dependencies exist
Only some attributes are dependent

💡 Hint: Think about the definition of dependency.

Question 2

True or False: A relation in 2NF can still have a partial dependency.

True
False

💡 Hint: Consider the definitions of normal forms.

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Challenge Problems

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Challenge 1 Hard

Given a relation with EmployeeID, ProjectID, and ProjectDetails. If EmployeeID determines ProjectDetails but ProjectID does not, discuss how you would normalize this to satisfy 2NF.

💡 Hint: Pay attention to how the dependencies interact.

Challenge 2 Hard

Review a database schema containing OrderID, ProductID, ProductName, and CustomerID. If CustomerID influences ProductName, what should be done?

💡 Hint: Analyze how separation reduces redundancy.

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Reference links

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