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We use the SQL construct COUNT(*) to count the number of rows in a table.

  • A.True
  • B.False

Answer: A

Correct answer: True

COUNT(*) counts the rows in a table or in each group of a grouped query, including rows containing nulls. It is the first thing to run on an acquired table, since the row count establishes the scale of what you are dealing with before any structural inference is attempted.

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