COUNT(*) functionCOUNT(*) is an aggregate function that counts the number of rows
accessed. No NULLs or duplicates are eliminated. COUNT(*) does not operate
on an expression.COUNT(*) aggregate function
See for more
information about these functions.
SyntaxCOUNT(*)
The
resulting data type is INTEGER.
Example-- Count the number of rows in the Flights table
SELECT COUNT(*)
FROM Flights