The SQL Keyword IS NULL Can Be Used to ________

question 89

Multiple Choice

The SQL keyword IS NULL can be used to ________.

• A)count the number of columns in a table
• B)count the number of rows in a table
• C)count the number of null values in a column
• D)A and C
• E)B and C

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Definitions:

Central Nervous System

The central nervous system consists of the brain and spinal cord, functioning as the primary processing center for the body's nervous system.

Stimulant

A substance that raises levels of physiological or nervous activity in the body, typically used to increase alertness, energy, or physical performance.

Tranquilizer

A drug used to reduce tension or anxiety, often by depressing nerve function.

Morphine

A potent opiate analgesic drug used to relieve severe pain, derived from the opium poppy.