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Which SQL function is used to count the number of rows in a SQL query?

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Which SQL function is used to count the number of rows in a SQL query?

(a) COUNT()

(b) NUMBER()

(c) SUM()

(d) COUNT(*)

This question was posed to me during an interview.

My question comes from Basic SQL in division Laying the Foundation of SQL Server

1 Answer

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Best answer
Right choice is (d) COUNT(*)

For explanation: COUNT(*) takes null value row in to consideration.

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