What Are the Differences in the Logical and Physical Structures

question 38

Essay

What are the differences in the logical and physical structures of a database? How do these structures relate to the three levels of the database architecture?

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Definitions:

Wax Crystals

Solid crystalline substances formed in some oils and fats that can cause blockages in fuel systems or cloud the appearance of liquids at lower temperatures.

Plug Filters

Devices used to remove particulate contaminants from fluids or gas streams, often installed in-line with other machinery or systems.

Differential Carrier Housing

The casing that encloses the differential assembly in a vehicle, providing protection and support for the differential gears.