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Introduction to Database System

Introduction to Database System
In SQL, which command is used to changes data in a table?

BROWSE
UPDATE
APPEND
INSERT

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Introduction to Database System
Versatile report generators can provide

None of these
Calculations
Subtotals
Columnar totals
All of these

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Introduction to Database System
Which of the following is true of a network structure?

It allows a many-to-many relationship
It will be the dominant data base of the future
It is a physical representation of the data
It is conceptually simple

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Introduction to Database System
Helping people keep track of things is the purpose of a(n) ________ .

instance
table
relationship
database

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Introduction to Database System
An attribute describes the entity's characteristics.

False
True

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Introduction to Database System
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.

instance
parent
child
subtype

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