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Introduction to Database System

Introduction to Database System
Primitive operations common to all record management systems include

Sort
Print
Look-up
All of the listed here

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Introduction to Database System
Sort/report generators

are faster than index/report generators
do not need to sort before generating a report
none of the listed here
require more disk space than index/report generators

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Introduction to Database System
Composite identifiers consist of two or more attributes.

True
False

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Introduction to Database System
A file produced by a spreadsheet

can be used as it by the DBMS
can be used for graphic
all of the listed here
is generally stored on disk in an ASCII text format

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Introduction to Database System
When you have finished entering information into a form

the contents of the form are written to the data file
All of the listed here
the template is written to the data file
the contents of the form can be printed

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Introduction to Database System
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?

Weak entity
ID-independent entity
Strong entity
ID-dependent entity

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