Which Operator Finds Rows That Do Not Contain a Null

question 33

Multiple Choice

Which operator finds rows that do not contain a null value in the specified column?

• A) IS NULL
• B) NOT NULL
• C) !NULL
• D) IS NOT NULL

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Definitions:

Unity of Direction

A principle in management that suggests all parts of an organization should be aligned and moving towards the same objectives through coordinated efforts.

Henri Fayol

A French engineer and scholar who developed the general theory of business administration and is best known for his 14 principles of management.

Scalar Chain

A principle of organizational management that establishes a clear line of authority from the top ranks through to the bottom levels within an organization.

Scientific Management

Emphasises careful selection and training of workers, and supervisory support.