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