请问,这个触发器该怎么写?(见文章内容)

Question

CREATE TR1 ON FIVESTAR
FOR  DELETE 
AS
DELETE FIVESTARVERTEX FROM FIVESTARVERTEX,DELETED
WHERE (FIVESTARVERTEX.StarID IN (SELECT DELETED.StarID FROM DELETED))

Answer 1

CREATE TR1 ON FIVESTAR
FOR  DELETE 
AS
DELETE FIVESTARVERTEX 
FROM FIVESTARVERTEX,DELETED
WHERE FIVESTARVERTEX.StarID=DELETED.StarID
GOor:
CREATE TR1 ON FIVESTAR
FOR  DELETE 
AS
DELETE FIVESTARVERTEX 
WHERE StarID IN (SELECT StarID FROM DELETED)GO

Answer 2

to: yeahnope(金@_) 
定义外键，级联删除?
举个例子行吗,
我是新手