mysql - 这个mysql create trigger语句有什么问题

Question

CREATE TRIGGER google_inventory BEFORE UPDATE ON `cataloginventory_stock_item`
FOR EACH ROW 
BEGIN 
   update `catalog_product_entity_int` 
   set value=20 
   where attribute_id=552 
          and entity_id=NEW.product_id 
          and NEW.is_in_stock=0;
   update `catalog_product_entity_int` 
   set value=21 
   where attribute_id=552 
          and entity_id=NEW.product_id 
          and NEW.is_in_stock=1;
  END;

它给了我以下错误:

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

我是一名 SQL Server 专业人士，无法确定问题所在。

Answer 1

您需要更改分隔符。没有它，分号将结束 CREATE TRIGGER 语句。

delimiter |

CREATE TRIGGER google_inventory BEFORE UPDATE ON `cataloginventory_stock_item`
FOR EACH ROW 
BEGIN 
   update `catalog_product_entity_int` 
   set value=20 
   where attribute_id=552 
          and entity_id=NEW.product_id and NEW.is_in_stock=0;
   update `catalog_product_entity_int` 
   set value=21 
   where attribute_id=552 
          and entity_id=NEW.product_id and NEW.is_in_stock=1;
  END;
|

delimiter ;