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MCQ

A domain is atomic if elements of the domain are considered to be ____________ units.

Different

Indivisbile

Constant

Divisible

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An entity in A is associated with at most one entity in B. An entity in B, however, can be associated with any number (zero or more) of entities in A.

One-to-many

One-to-one

Many-to-many

Many-to-one

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MCQ

Given the basic ER and relational models, which of the following is INCORRECT?

An attribute of an entity can have more than one value

An attribute of an entity can be composite

In a row of a relational table, an attribute can have more than one value

In a row of a relational table, an attribute can have exactly one value or a NULL value

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MCQ

If an entity set is a lower-level entity set in more than one ISA relationship, then the entity set has

Hierarchy

Multilevel inheritance

Single inheritance

Multiple inheritance

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MCQ

If you were collecting and storing information about your music collection, an album would be considered a(n) _____

Relation

Entity

Instance

Attribute

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MCQ

The completeness constraint may be one of the following: Total generalization or specialization, Partial generalization or specialization. Which is the default?

Total

Partial

Should be specified

Cannot be determined

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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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Community Discussion

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More Database Management System Topics