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Introduction to Database System

Introduction to Database System
A database has data and relationships.

True
False

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Introduction to Database System
A _____ means that one record in a particular record type may be related to more than one record of another record type.

Many-to-one relationship
One-to-one relationship
One-to-many relationship
Many-to many relationship

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Introduction to Database System
Updating a database means

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

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Introduction to Database System
Sort/report generators

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

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Introduction to Database System
Properties that describe the characteristics of entities are called:

attributes.
entities.
relationships.
identifiers.

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Introduction to Database System
A candidate key is a determinant that determines all the other columns is a relation.

False
True

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