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Introduction to Database System

Introduction to Database System
A key is a group of one or more attributes that uniquely identifies a row.

True
False

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Introduction to Database System
In a 1:N relationship, the parent is the entity on the one side of the relationship and the child is the entity on the N side of the relationship.

True
False

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Introduction to Database System
A form can be used to

delete records
modify records
All of these
None of these
format printed output

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Introduction to Database System
The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?

Data field
Bits
None of the listed here
Characters

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Introduction to Database System
A recursive relationship is a relationship between an archetype and an instance of that archetype.

True
False

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Introduction to Database System
Updating a database means

modifying or adding record occurrences
reorganizing the database
all of the listed here
revising the file structure

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