goods_input_total_amount-updateon-goods_input
语法适用于“插入前”触发器,但我收到此错误消息:
错误代码:1064您的SQL语法出错;检查 手册,对应右边的MySQL服务器版本 在'TRIGGER附近使用的语法
$section
在更新之前 在第3行打开'gy'
答案 0 :(得分:0)
CREATE OR REPLACE TRIGGER
尝试
DELIMITER $$
CREATE
TRIGGER `goods_input_total_amount-updateon-goods_input` BEFORE UPDATE
ON `gym`.`goods_input`
FOR EACH ROW BEGIN
DECLARE input_price INTEGER; /*use whatever datatype you have in your db for the price */
SELECT price_goods_input_price INTO input_price FROM goods_input_price
WHERE id_goods_input_price=NEW.id_goods_input_price LIMIT 1;
SET new.goods_input_total_amount=new.goods_input_quantity*input_price;
END$$
DELIMITER ;
如果要删除现有的TRIGGER,请使用
DROP TRIGGER IF EXISTS Trigger_name
在create trigger
代码之前