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Closure of Relation Video Lecture | Crash Course for UGC NET Economics

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FAQs on Closure of Relation Video Lecture - Crash Course for UGC NET Economics

1. What is the closure of a relation in the context of UGC NET?
Ans. The closure of a relation in UGC NET refers to the set of all attributes that can be functionally determined from the given relation. It includes all the attributes that are directly or indirectly dependent on the given relation.
2. How is the closure of a relation calculated in UGC NET?
Ans. The closure of a relation in UGC NET is calculated using the Armstrong's axioms and the concept of functional dependencies. By repeatedly applying the closure rules, one can determine all the attributes that are functionally dependent on the given relation.
3. Why is the closure of a relation important in database management for UGC NET?
Ans. The closure of a relation is crucial in database management for UGC NET as it helps in understanding the dependencies between attributes in a database. It allows for the normalization of data and ensures data integrity by eliminating redundancies and anomalies.
4. How can the closure of a relation impact query performance in UGC NET?
Ans. The closure of a relation can impact query performance in UGC NET by affecting the efficiency of data retrieval. If the closure is not properly calculated and maintained, it can lead to slower query processing times and inefficient data access.
5. What are some common applications of the closure of a relation in UGC NET?
Ans. The closure of a relation in UGC NET is commonly used in database design, data modeling, and query optimization. It helps in ensuring data consistency, improving database performance, and simplifying the process of database management.
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