The CUSTOMER Table's Primary Key Is CUS_CODE

question 45

Multiple Choice

The CUSTOMER table's primary key is CUS_CODE. The CUSTOMER primary key column has no null entries, and all entries are unique. This is an example of _____ integrity.

• A) entity
• B) referential
• C) relational
• D) null

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Definitions:

Laptop

A portable personal computer designed for mobile use, with the screen, keyboard, and computing components all contained in a single unit.

3-D Printer

A device that creates three-dimensional objects by depositing materials, such as plastic, layer by layer based on digital models.

Physical

Pertaining to the corporeal or material world, as opposed to digital, virtual, or mental aspects.

Visual

Refers to elements that can be seen, often pertinent in computing to graphical interfaces or imagery.