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Exam 3: Data Models

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Question 21

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What do business rules require to be effective?

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To be effective, business rules must be ...

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Question 22

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Describe the three parts involved in any SQL-based relational database application.

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From an end-user perspective, any SQL-ba...

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Question 23

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A(n) ____________________ is a relatively simple representation of more complex real-world data structures.

MySQL is an example of a(n) ____.

The network model has structural level dependence.

Each row in the relational table is known as an entity instance or entity occurrence in the ER model.

Within the database environment, a data model represents data structures with the purpose of supporting a specific problem domain.

___________________________________ is a language based on OO concepts that describes a set of diagrams and symbols used to graphically model a system.

A(n) ____________________ is a brief, precise, and unambiguous description of a policy, procedure, or principle within a specific organization.

In the ____ model, each parent can have many children, but each child has only one parent.

Each row in a relation is called a(n) ____________________.

Business rules apply to businesses and government groups, but not to other types of organizations such as religious groups or research laboratories.

____ are important because they help to ensure data integrity.

The ____ data model uses the concept of inheritance.

Oracle 11g is an example of a(n) ____.

In object-oriented terms, a(n) ____________________ defines an object's behavior.

A manager and a programmer usually have the same view of the same data.

In an SQL-based relational database, rows in different tables are related based on common values in common attributes.

Which of the following is true of business rules?

The object-oriented data model was developed in the ____.