In which of the following, a separate schema is created cons...

MCQ

In which of the following, a separate schema is created consisting of that attribute and the primary key of the entity set.

A many

A multivalued attribute of an entity set

A one

All of the mentioned

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MCQ

This comes under

Lossy

Lossy decomposition

Lossless

Both Lossy and Lossy

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MCQ

A relation is in 2NF if it is in 1NF and all its non-prime attributes are fully functionally dependent on which of the following?

Candidate key.

Any attribute.

Non-prime attribute.

Foreign key.

Discussion

MCQ

In a functional dependency \( X \rightarrow Y \), what does it mean if attribute X uniquely determines attribute Y?

Y is functionally dependent on X.

X is functionally dependent on Y.

X and Y are independent.

X and Y are prime attributes.

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MCQ

If a multivalued dependency holds and is not implied by the corresponding functional dependency, it usually arises from one of the following sources.

A many

A multivalued attribute of an entity set

A one

Both A many

Discussion

MCQ

Which of the following is a benefit of database normalization?

Increased query complexity.

Reduced data redundancy.

Potential for more data loss.

Slower update operations.

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Engineering

General

Medical

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category More Database Management System Topics

Miscellaneous or General

Relational Algebra

Database Systems

Data Models

The Relational Database Model

Entity Relationship (ER) Modeling

Advanced Data Modeling

Normalization

Structured Query Language (SQL)

Advanced SQL

Database Design

Transaction and Concurrency

Data Warehouses

Database Administration

Mixed

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