创建触发器时出现MYSQL错误

我有以下MySQL触发器查询：

CREATE
TRIGGER `after_insert_stock` AFTER INSERT 
ON `stock` 
FOR EACH ROW BEGIN

    IF NEW.deleted THEN
        SET @changetype = 'DELETE';
    ELSE
        SET @changetype = 'NEW';
    END IF;
            INSERT INTO stock_audit (stock_id, commodity_name,commodity_id,delivery_no,supplier_name,batch_no,expiry_date,units_per_pack,no_of_packs,total_quantity,buying_price,selling_price,remarks,available_quantity,user_id,changetype) VALUES (NEW.stock_id,NEW.commodity_name,NEW.commodity_id,NEW.delivery_no,NEW.supplier_name,NEW.batch_no,NEW.expiry_date,NEW.units_per_pack,NEW.total_quantity,NEW.buying_price,NEW.selling_price,NEW.remarks,NEW.available_quantity,NEW.user_id, @changetype);

END$$

当我运行查询时，我得到以下MySQL错误：error

SQL查询：

CREATE TRIGGER `after_insert_stock` AFTER INSERT ON `stock_audit`
FOR EACH
ROW BEGIN
IF NEW.deleted
THEN
SET @changetype = 'DELETE';

MySQL说：文档

1064-您的SQL语法有错误；请查看与MySQL服务器版本对应的手册，以了解第7行“”附近要使用的正确语法

请找个人帮忙解决这个问题好吗

您错过了申报：

DELIMITER $$
CREATE
TRIGGER `after_insert_stock` AFTER INSERT 
ON `stock` 
FOR EACH ROW BEGIN

    IF NEW.deleted THEN
        SET @changetype = 'DELETE';
    ELSE
        SET @changetype = 'NEW';
    END IF;
            INSERT INTO stock_audit (stock_id, commodity_name,commodity_id,delivery_no,supplier_name,batch_no,expiry_date,units_per_pack,no_of_packs,total_quantity,buying_price,selling_price,remarks,available_quantity,user_id,changetype) VALUES (NEW.stock_id,NEW.commodity_name,NEW.commodity_id,NEW.delivery_no,NEW.supplier_name,NEW.batch_no,NEW.expiry_date,NEW.units_per_pack,NEW.total_quantity,NEW.buying_price,NEW.selling_price,NEW.remarks,NEW.available_quantity,NEW.user_id, @changetype);

END$$

试试这个：

---

试试这个简化的查询-

CREATE TRIGGER `after_insert_stock`
AFTER INSERT 
ON `stock` 
FOR EACH ROW
INSERT INTO
  stock_audit (stock_id, commodity_name,commodity_id,delivery_no,supplier_name,batch_no,expiry_date,units_per_pack,no_of_packs,total_quantity,buying_price,selling_price,remarks,available_quantity,user_id,changetype)
VALUES
  (NEW.stock_id,NEW.commodity_name,NEW.commodity_id,NEW.delivery_no,NEW.supplier_name,NEW.batch_no,NEW.expiry_date,NEW.units_per_pack,NEW.total_quantity,NEW.buying_price,NEW.selling_price,NEW.remarks,NEW.available_quantity,NEW.user_id, IF(NEW.deleted, 'DELETE', 'NEW'));

---

上面代码中的哪一行是第7行？P5Coder请查看以下内容：SET@changetype='DELETE'@用户689017。是否删除了表中的一列？从概念上讲，在插入触发器中有一个changetype的DELETE有点奇怪：p添加分隔符$$后，出现以下错误：#1064-您的SQL语法有错误；检查与您的MySQL服务器版本对应的手册，了解每行使用的正确语法，即“ON

stock

”，如果是“NEW.deleted”，则设置@changetype=“DELETE”；ELSE'在第1行，在我的情况下，一切正常（即，我得到错误“Table'db.stock'不存在”，因此语法是正确的）。你能邮寄吗？

CREATE TRIGGER `after_insert_stock`
AFTER INSERT 
ON `stock` 
FOR EACH ROW
INSERT INTO
  stock_audit (stock_id, commodity_name,commodity_id,delivery_no,supplier_name,batch_no,expiry_date,units_per_pack,no_of_packs,total_quantity,buying_price,selling_price,remarks,available_quantity,user_id,changetype)
VALUES
  (NEW.stock_id,NEW.commodity_name,NEW.commodity_id,NEW.delivery_no,NEW.supplier_name,NEW.batch_no,NEW.expiry_date,NEW.units_per_pack,NEW.total_quantity,NEW.buying_price,NEW.selling_price,NEW.remarks,NEW.available_quantity,NEW.user_id, IF(NEW.deleted, 'DELETE', 'NEW'));