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