The Process of Retrieving Data from Multiple Sources to Be

question 14

Multiple Choice

The process of retrieving data from multiple sources to be loaded into a data warehouse is called ________.

• A)extraction
• B)transformation
• C)loading
• D)normalization

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Definitions:

Lewis Dot Structure

A diagrammatic representation of the valence electrons in an atom, ion or molecule, using dots around the symbol of an element.

Potassium

A soft, silvery-white metallic element, highly reactive and essential for biological organisms, symbolized as K.

Se

Selenium, a nonmetal element with properties that are intermediate between those of metals and nonmetals, used in various industrial applications.

Lewis Dot Structure

A representation of the valence electrons in an atom or molecule, illustrating the bonds between atoms and lone pairs of electrons.