初学者的简单问题，触发器

Question

Create Trigger trg_Delete 
On A
For Delete 
As
Delete B where B.章节码 in (select 章节码 from Deleted)
Return

Answer 1

try:Create Trigger trg_Delete 
On A
For Delete 
As
Delete 
From  B
Where B.章节码 in(select  章节码 from Deleted)

Answer 2

Create Trigger trg_Delete 
On A
For Delete 
As
begin
Delete 
From  B,Deleted
Where B.章节码 = Deleted.章节码
end

Answer 3

Create Trigger trg_Delete 
On A
For Delete 
As
    delete B from B, DELETED c where B.章节码 = c.章节码
Return

Answer 4

Create Trigger trg_Delete 
On A
For Delete 
As
    delete B from B, DELETED c where B.章节码 = c.章节码
Return