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Introduction to Database System

Introduction to Database System
If you want to organize a file in multiple ways, it is better to _____ the data rather than to sort it.

None of these
Index
Delete
Update
Sort Key

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Introduction to Database System
A file produced by a spreadsheet

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

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Introduction to Database System
The functional dependency R → S means that the value of S can be determined when we are given a value of R.

True
False

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Introduction to Database System
Which of the following is not true of the traditional approach to information processing?

There is common sharing of data among the various applications
It is inflexible
It is file-oriented
Programs are dependent on the files
All of these

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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
If a calculation is embedded in a form

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

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