create trigger trg1
After insert on idi
For each row
Begin
update uk set kucun = kucun-new.num where iid = new.id;
End

错误
SQL 查询: 

CREATE trigger trg1 AFTER INSERT ON idi
FOR each
ROW 
BEGIN 
UPDATE uk SET kucun = kucun - new.num WHERE iid = new.id;



MySQL 返回： 

#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 5