DELIMITER $$
CREATE DEFINER=`root`@`%` PROCEDURE `vn`.`clientRisk_update`(vClientId INT, vCompanyId INT, vAmount DECIMAL(10,2))
BEGIN
	IF vAmount IS NOT NULL
	THEN
		INSERT INTO clientRisk
			SET
				clientFk = vClientId,
				companyFk = vCompanyId,
				amount = vAmount
			ON DUPLICATE KEY UPDATE
				amount = amount + VALUES(amount);
	END IF;
END$$

DELIMITER ;