DROP function IF EXISTS `vn`.`botanicExport_isUpdatable`;

DELIMITER $$
CREATE DEFINER=`root`@`%` FUNCTION `vn`.`botanicExport_isUpdatable`(vEdiGenusFk MEDIUMINT,vEdiSpecieFk MEDIUMINT,
	vCountryFk MEDIUMINT,vRestriction MEDIUMINT) RETURNS int(11)
    DETERMINISTIC
BEGIN
	DECLARE vIsUpdatable INTEGER;
	SELECT COUNT(*) INTO vIsUpdatable 
		FROM botanicExport 
		WHERE ediGenusFk = vEdiGenusFk 
			AND (vEdiSpecieFk = ediSpecieFk OR IFNULL(vEdiSpecieFk,ediSpecieFk) IS NULL)
            AND (vCountryFk = countryFk OR IFNULL(vCountryFk,countryFk) IS NULL)
            AND vRestriction = restriction;
RETURN vIsUpdatable;
END$$

DELIMITER ;