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Introduction to Database System

Introduction to Database System
In an Enterprise-class database system, business users interact directly with database applications that interact with the DBMS, which directly accesses the database data.

False
True

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Introduction to Database System
If you want to group the records in the abc database, you could use the Jobcode as the _____.

Index
Delete
Sort Key
Update

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Introduction to Database System
Entities can be associated with one another in which of the following?

Entities
Relationships
Identifiers
Attributes

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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.

True
False

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Introduction to Database System
In SQL, which command is used to select data in rows and column from one or more tables?

SELECT
CHOOSE
None of these
LIST
BROWSE

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Introduction to Database System
A relation is in this form if it is in BCNF and has no multivalued dependencies:

third normal form.
domain/key normal form.
fourth normal form.
second normal form.

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