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Introduction to Database System

Introduction to Database System
The XML family of standards is very important in database processing today.

True
False

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Introduction to Database System
In SQL, which command(s) is(are) used to enable/disable a database trigger?

MODIFY USER
CHANGE USER
ALTER TRIGGER
All of the listed here

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

Modify
Look-up
All of these
Insert
None of these

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Introduction to Database System
In an enterprise-class database system, business users interact directly with database applications, which directly access the database data.

False
True

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Introduction to Database System
An operation that will increase the length of a list is

Insert
All of the listed here
Look-up
Modify

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

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

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