salix/db/routines/vn/triggers/duaTax_BEFORE_UPDATE.sql

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DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` TRIGGER `vn`.`duaTax_BEFORE_UPDATE`
BEFORE UPDATE ON `duaTax`
FOR EACH ROW
BEGIN
SET NEW.rate = duaTax_getRate(NEW.duaFk, NEW.taxClassFk);
SET NEW.tax = NEW.base * NEW.rate / 100;
END$$
DELIMITER ;