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Introduction to Database System

Introduction to Database System
An entity class is a collection of entities and is described by the structure of the entities in that class.

False
True

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Introduction to Database System
A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance.

True
False

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Introduction to Database System
A relation has cells that hold multi-value entries.

True
False

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Introduction to Database System
Large collections of files are called

file system
databases
fields
None of these
records

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Introduction to Database System
A number of related records that are treated as a unit is called

field
batch
file
data

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Introduction to Database System
If you want to group the records in the abc database, you could use the Jobcode as the _____.

Index
Sort Key
Delete
Update

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