1064错误，简单语句看不懂，开源的东西搞不懂

[WangZWang]

CREATE TRIGGER `xxx` BEFORE INSERT ON `Tabname` FOR EACH ROW
begin
set NEW.org_id=0;
END;

这个很简单的都会提示错误，用的Navicat Premium 12。
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 3