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Introduction to Database System

Introduction to Database System
A large computer information system maintains many different computer files. Which amongst them is called a perpetual file?

Master file
Update file
Log file
Specialized file

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Introduction to Database System
A number of related records that are treated as a unit is called

data
file
batch
field

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Introduction to Database System
Which of the following is true of a network structure?

It allows a many-to-many relationship
It is conceptually simple
It is a physical representation of the data
It will be the dominant data base of the future

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

restructuring
upgrading
Updating
renewing

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Introduction to Database System
You have run an SQL statement that asked the DBMS to display data in a table named USER_TABLES. The results include columns of data labeled "TableName," "NumberOfColumns" and "PrimaryKey." You are looking at ________ .

A report
indexes
user data
metadata

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Introduction to Database System
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.

False
True

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