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Introduction to Database System

Introduction to Database System
Periodically adding, changing and deleting file records is called file

Updating
renewing
upgrading
restructuring

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Introduction to Database System
Which type of entity represents an actual occurrence of an associated generalized entity?

Supertype entity
Instance entity
Subtype entity
Archetype entity

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Introduction to Database System
Database applications are seldom intended for use by a single user.

False
True

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Introduction to Database System
A functional dependency is a relationship between or among attributes.

True
False

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Introduction to Database System
The XML family of standards is very important in database processing today.

False
True

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Introduction to Database System
A file that is organized in uniform format is formally referred to as a _____ or a database file.

Record
Structured data file
Database
Document
None of these

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