帮忙看一下这个触发器，谢谢

在sql server里是正确的，即插入或更新表TTG_Account时，也要对TTG_Customer 进行更新，改称oracle触发器后，更新TTG_Account时更新了TTG_Customer，这是正确的，但是插入TTG_Account时，并没有插入TTG_Customer

这个触发器怎么调试阿？

Create Trigger TRG_TTG_Account_Insert_Customer
ON TTG_Account
After Insert,Update
As
Declare @CustomerNoNew varchar(6),@CustomerNoOld varchar(6)

If Update (AccountID)
Begin
select @CustomerNoOld=AccountID from deleted
select @CustomerNoNew=AccountID from inserted

If Not Exists (select CustomerID from TTG_Customer where CustomerNO=@CustomerNoOld)
Begin
Insert into TTG_Customer (CustomerNO) Values (@CustomerNoNew)
End
Else
Begin
Update TTG_Customer Set CustomerNO=@CustomerNoNew where CustomerNO=@CustomerNoOld

End

End

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一下是oracle触发器

Create Or Replace Trigger TR_TTG_Account_Insert_Customer
After Insert or Update
ON TTG_Account
FOR EACH ROW
Declare
v_CustomerNoNew varchar2(6);
v_CustomerNoOld varchar2(6);
v_CustomerID number(10,0);

Begin

v_CustomerNoOld:=:OLD.AccountID;
v_CustomerNoNew:=:NEW.AccountID;
IF (v_CustomerNoOld<>v_CustomerNoNEW) THEN
select CustomerID into v_CustomerID from TTG_Customer where CustomerNO=:OLD.AccountID;
IF v_CustomerID is null THEN
Insert into TTG_Customer (CustomerNO) Values (:NEW.AccountID);
ELSE
UPDATE TTG_Customer Set CustomerNO=:NEW.AccountID where CustomerNO=:OLD.AccountID;
END IF;
END IF;
End TR_TTG_Account_Insert_Customer;