更新触发触发器的同一记录

Question

我想使用由于插入该记录而触发的触发器来更新相同的记录。

当我尝试使用以下代码执行此操作时，会出现错误

DROP TRIGGER CONTROLLER_UPLOADER;

CREATE OR REPLACE TRIGGER CONTROLLER_UPLOADER

after insert ON CONTROLLER for each row

begin

    UPDATE CONTROLLER SET STATUS = 'STARTED' WHERE ID = (SELECT MAX(ID) FROM CONTROLLER);

end;

Answer 1

DROP TRIGGER CONTROLLER_UPLOADER;

CREATE OR REPLACE TRIGGER CONTROLLER_UPLOADER

BEFORE insert ON CONTROLLER for each row

begin

    :NEW.STATUS := 'STARTED';

end;

注意“BEFORE”不是“AFTER”。