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Introduction to Database System

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
Periodically adding, changing and deleting file records is called file

restructuring
upgrading
renewing
Updating

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Introduction to Database System
A command that lets you change one or more fields in a record is

Modify
Insert
All of these
Look-up
None of these

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Introduction to Database System
Database applications are seldom intended for use by a single user.

False
True

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Introduction to Database System
Large collections of files are called

None of these
file system
fields
databases
records

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Introduction to Database System
In SQL, the _____ command is used to recompile a view

DEFINE VIEW
ALTER VIEW
None of these
CREATE VIEW
COMPILE VIEW

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