MySQL local variables

Question

I am trying to define and initialize a MySQL variable for a query.

I have the following:

declare @countTotal int;
SET @countTotal = select COUNT(*)
 from         


        

Answer 1

Function example:

DROP FUNCTION IF EXISTS test;

DELIMITER $$
CREATE FUNCTION test(in_number INT) RETURNS INT
    BEGIN
        DECLARE countTotal INT;
        SET countTotal = SELECT COUNT(*) FROM nGrams;
    RETURN countTotal + in_number;
END $$
DELIMITER ;