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这是一个简单的触发我试图创建:错误创建触发器
CREATE TRIGGER add_item_id BEFORE INSERT ON products
FOR EACH ROW
BEGIN
DECLARE max_id INTEGER;
SELECT MAX(item_id) INTO @max_id FROM products;
SET NEW.item_id = @max_id + 1;
END;
我想它无论在phpMyAdmin的SQL窗口和MySQL提示,并得到了同样的错误如下:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 4