Untitled

MySQL query to return number 'zero' if no results
SELECT SUM(TOTAL), SUM(5STAR), STORE, DATE
    FROM `table` WHERE DATE >= '2012-02-24' GROUP BY TOTAL

MySQL returned an empty result set (i.e. zero rows)

DELIMITER $$

CREATE PROCEDURE `mc`.`new_routine` (IN DT DATETIME)
BEGIN

IF EXISTS (SELECT 1 FROM `table` WHERE DATE >= @DT)
THEN
    SELECT SUM(TOTAL) AS SumTotal, SUM(5STAR) AS Sum5Star, STORE, `DATE`
    FROM `table`
    WHERE DATE >= @DT
    GROUP BY TOTAL;
ELSE
    SELECT 0 AS SumTotal, 0 AS Sum5Star, NULL AS STORE, NULL AS `DATE`;
END IF;

END

SELECT IFNULL(SUM(TOTAL,0) AS total, IFNULL(SUM(5STAR),0) AS FiveStar,
       STORE, DATE
FROM `table` WHERE DATE >= '2012-02-24' GROUP BY TOTAL

SELECT COALESCE(SUM(TOTAL),0), COALESCE(SUM(5STAR),0), STORE, DATE
FROM `table` WHERE DATE >= '2012-02-24' GROUP BY TOTAL