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Boyce-Codd Normal Form (BCNF) | Database Normalization | DBMS Video Lecture | Database Management System (DBMS) - Computer Science Engineering (CSE)
FAQs on Boyce-Codd Normal Form (BCNF) - Database Normalization - DBMS Video Lecture - Database Management System (DBMS) - Computer Science Engineering (CSE)
| 1. What is Boyce-Codd Normal Form (BCNF)? |  |
Ans. Boyce-Codd Normal Form (BCNF) is a normalization technique in database design that ensures that a database table is free of certain types of anomalies. It is a higher level of normalization than the Third Normal Form (3NF) and is based on functional dependencies.
| 2. What are the advantages of normalizing a database to BCNF? | |
Ans. Normalizing a database to BCNF helps in reducing data redundancy, improving data integrity, and making it easier to update and maintain the database. It also helps in avoiding insertion, deletion, and update anomalies.
| 3. How is BCNF different from Third Normal Form (3NF)? | |
Ans. BCNF is a stricter form of normalization compared to 3NF. In BCNF, every determinant must be a candidate key, whereas in 3NF, only non-prime attributes can be dependent on non-prime attributes.
| 4. When should a database be normalized to BCNF? | |
Ans. A database should be normalized to BCNF when there are functional dependencies that lead to anomalies, such as insertion, deletion, and update anomalies. Normalizing to BCNF helps in improving the overall efficiency and reliability of the database.
| 5. What are the common challenges faced when normalizing a database to BCNF? | |
Ans. Some common challenges faced when normalizing a database to BCNF include identifying functional dependencies, determining candidate keys, and ensuring that every determinant is a candidate key. It may also involve restructuring existing tables and data to meet the BCNF requirements.
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