mysql 报错query builder does not support this syntax near "trigger"

[weixin_41991333]

create TRIGGER db_trigger1 on db_dwy.orderitem for update
as
BEGIN
if EXISTS (select * from db_dwy.orderitem where order_id ='5dc927e2-9c4f-4817-bca6-a11d796db8c7')
DROP table orderitem
else
begin
CREATE TABLE orderitem(
user_id int IDENTIFIED (1,1) PRIMARY KEY,
user_name varchar(50),
user_pwd VARCHAR(50)

)
INSERT INTO orderitem (user_name user_pwd) VALUES ('hy1','111')
INSERT INTO orderitem (user_name user_pwd) VALUES ('hy2','222')
INSERT INTO orderitem (user_name user_pwd) VALUES ('hy3','333')
END
END

[学海无涯-回头是岸]

创建语法不对 CREATE TRIGGER trigger_name trigger_time trigger_event ON tbl_name FOR EACH ROW trigger_stmt trigger_time 是触发器的触发时间，可以是BEFORE 或者AFTER，BEFORE 的含义指在检查约束前触发，而AFTER 是在检查约束后触发。 而trigger_event 就是触发器的触发事件，可以是INSERT、UPDATE 或者DELETE。 对同一个表相同触发时间的相同触发事件，只能定义一个触发器。