What is the purpose of using count (*) in the SELECT query?

What does SELECT count (*) mean in SQL?

COUNT(*) returns the number of rows in a specified table, and it preserves duplicate rows. It counts each row separately. This includes rows that contain null values.

What is count (*) used for?

COUNT(*) The COUNT(*) function returns the number of rows in a dataset using the SELECT statement. The function counts rows with NULL, duplicate, and non-NULL values.

What does SELECT count (*) mean?

The COUNT(*) function counts the total rows in the table, including the NULL values.

What is the purpose of the following query SELECT count (*) from student?

SELECT COUNT(*) counts the number of rows in the table. Consider the same STUDENT table that we have seen in the above example.