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MCQ

_____________ express the number of entities to which another entity can be associated via a relationship set.

Mapping Cardinality

Relational Cardinality

Participation Constraints

None of the mentioned

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MCQ

Database __________ which is the logical design of the database, and the database _______ which is a snapshot of the data in the database at a given instant in time.

Instance, Schema

Relation, Schema

Relation, Domain

Schema, Instance

Discussion

MCQ

Consider the employee work-team example, and assume that certain employees participate in more than one work team. A given employee may therefore appear in more than one of the team entity sets that are lower level entity sets of employee. Thus, the generalization is _____________

Overlapping

Disjointness

Uniqueness

Relational

Discussion

MCQ

Establishing limits on allowable property values, and specifying a set of acceptable, predefined options that can be assigned to a property are examples of:

Attributes

Data integrity constraints

Method constraints

Referential integrity constraints

Discussion

MCQ

Which of the following gives a logical structure of the database graphically?

Entity-relationship diagram

Entity diagram

Database diagram

Architectural representation

Discussion

MCQ

An entity in A is associated with at most one entity in B, and an entity in B is associated with at most one entity in A.This is called as

One-to-many

One-to-one

Many-to-many

Many-to-one

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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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Community Discussion

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