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Introduction to Database System

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

APPEND
UPDATE
INSERT
BROWSE

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Introduction to Database System
Queries to a database

both (a) and (b)
All of these
can use aggregate functions like SUM and COUNT
are written in English
None of these

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Introduction to Database System
Batch processing is appropriate if

a large computer system is available
None of these
only a small computer system is available
only a few transactions are involved
All of these

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Introduction to Database System
One solution to the multivalued dependency constraint problem is to:

add a composite key.
create a new theme.
change the theme.
split the relation into two relations, each with a single theme.

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Introduction to Database System
SQL stands for ________ .

Sequential Question Language
Sequential Query Language
Structured Question Language
Structured Query Language

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Introduction to Database System
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.

False
True

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