我该如何解决“您无法更改'dbo.tb_dept_change'，因为它是不兼容的对象类型”？

Question

我有两个表，分别是dbo.tb_dept_change和dbo.tb_employee。我需要更改触发器，但它会注意到消息2010，等级16，状态1，过程tb_dept_change，第21行无法对'dbo.tb_dept_change'进行更改，因为它是不兼容的对象类型。

SET ANSI_NULLS ON
SET QUOTED_IDENTIFIER ON
GO

ALTER TRIGGER [dbo].[tb_dept_change] ON  [dbo].[tb_employee]

FOR UPDATE

AS

if ( COLUMNS_UPDATED() &7) >0

    BEGIN

    if ((select employee_dept from Deleted ) <> (select employee_dept from Inserted))

begin

    insert into tb_dept_change

    (ch_date)

    values(getdate())

    update tb_dept_change set ch_source =Deleted.employee_dept, ch_duty_source = Deleted.employee_duty from Deleted

    update tb_dept_change set ch_destination = Inserted.employee_dept, ch_duty_Destination = Inserted.employee_duty from Inserted

    update tb_dept_change set ch_employee = Deleted.employee_id from Deleted