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Introduction to Database System

Introduction to Database System
In any hierarchy of data organization, the smallest entity to be processed as a single unit is called

None of these
data record
data field
data file
database

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Introduction to Database System
All instances of an entity class have the same attributes.

True
False

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Introduction to Database System
A form defines

the width of each field
where data is placed on the screen
both of the listed here
none of the listed here

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Introduction to Database System
What is the abbreviation used for a software package that permits the users to create, retrieve and maintain records in a database?

FMS
None of these
DASD
DBMS
EMMS

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Introduction to Database System
After you _____ a record, many data management the environments require you to issue a command to save the changes you made.

Delete
Sort key
Update
Index

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Introduction to Database System
The logical data structure with a one-to-many relationship is a

chain
network
tree
relational

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