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Introduction to Database System

Introduction to Database System
A computer file contains several records. What does each record contain?

Bytes
Database
Fields
Words

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Introduction to Database System
Data security threats include

privacy invasion
hardware failure
all of the listed here
fraudulent manipulation of data

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Introduction to Database System
Which of the following is not characteristic of a relational database model?

records
complex logical relationships
treelike structure
tables

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Introduction to Database System
Helping people keep track of things is the purpose of a(n) ________ .

table
instance
relationship
database

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Introduction to Database System
To have a file hold a list, it is necessary to

All of the listed here
decide which fields will be used as sort or index keys
identify the records in the list
identify the name, width and type of the fields of each record.

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Introduction to Database System
If a calculation is embedded in a form

the result of the calculations are printed in report
all of the listed here
the result of the calculations are stored with the form
the calculations are stored with the form

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