Practice Boyce-codd Normal Form (bcnf) (6.4.4) - Normalization - Introduction to Database Systems
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Boyce-Codd Normal Form (BCNF)

Practice - Boyce-Codd Normal Form (BCNF)

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define Boyce-Codd Normal Form.

💡 Hint: Think about the relationship between determinants and superkeys.

Question 2 Easy

What does a superkey do?

💡 Hint: Consider how a key works in a database.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a requirement for a table to be in Boyce-Codd Normal Form?

All attributes must be non-key
Every functional dependency's determinant must be a superkey
It must have at least one candidate key

💡 Hint: Recall the definition of BCNF.

Question 2

Is every BCNF relation also in 3NF?

True
False

💡 Hint: Think about the hierarchy of normal forms.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a database with student IDs, their courses, and scores, identify any functional dependencies. If a student can have multiple courses, analyze if the table is in BCNF and decompose it if necessary.

💡 Hint: Remember to list the functional dependencies clearly before determining the structural needs.

Challenge 2 Hard

Analyze an Employee_Project table where each employee is assigned to multiple projects. Determine the functional dependencies and describe how you would ensure this table is in BCNF.

💡 Hint: Think through each functional dependency carefully to see what can uniquely identify each entry.

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