What Is Extraction, Transformation, and Loading

question 95

Multiple Choice

What is extraction, transformation, and loading?

• A) It is a process of entering data, tracking data, and loading it into a database
• B) It is a process that extracts information from internal and external databases, transforms it using a common set of enterprise definitions, and loads it into a data warehouse
• C) It is a process that is performed at the end of the data warehouse model prior to putting the information in a cube
• D) It is a process that is performed at the beginning of the data mining model

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Definitions:

Retina

Light-sensitive surface at the back of the eye, consisting of neurons and photoreceptor cells.

Hyperopia

A common vision condition, also known as farsightedness, where distant objects can be seen clearly, but close ones do not come into proper focus.

Farsightedness

A common vision condition where distant objects can be seen clearly, but close ones do not come into proper focus, usually resulting from an eyeball that's too short or a lens that is not round enough.

Visual Field

The entire space that is visible in the side view when the eye concentrates on a single point in the center.