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Introduction to Database System

Introduction to Database System
Data item characteristics that are important in data management include

width
punctuation
spelling
language

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Introduction to Database System
Sophisticated report generators can

All of the listed here
selectively retrieve and print portions of a list
perform arithmetic operations
print row-oriented reports

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Introduction to Database System
A subtype entity is a special case of another entity called a supertype entity.

False
True

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Introduction to Database System
The database administration function includes

All of these
None of these
database access planning
computer operations management
application programming

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

True
False

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Introduction to Database System
For some relations, changing the data can have undesirable consequences called:

transitive dependencies.
normal forms.
referential integrity constraints.
modification anomalies.

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