The SQL Aggregate Function That Gives the Number of Rows

question 19

Multiple Choice

The SQL aggregate function that gives the number of rows containing non-null values for a given column is _____.

• A) COUNT
• B) MIN
• C) MAX
• D) SUM

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Definitions:

Motility

Self-propulsion.

Self-propulsion

The ability of an object or being to move itself using internal force, without the need for external aid.

Monozygotic Twins

Twins that originate from a single fertilized egg, sharing identical genetic material and usually very similar physical traits.

Genes

Units of heredity made up of DNA, acting as instructions to make molecules called proteins, vital for building and maintaining the body’s cells and organs.