CREATE trigger [FC_RK_CLXX_T_update] on [dbo].[FC_RK_CLXX_T]  
instead   of  update  
as begin  
  
  if update(FC_CL_ID) or update(DJ) begin  
    Update FC_CL_QCKC_T Set FC_CL_ID=i.FC_CL_ID,DJ=i.DJ  
           From FC_CL_QCKC_T br , Deleted   d ,Inserted i   
           Where br.FC_RKJL_ID=i.ID   
  end   
  
end

CREATE trigger [FC_RK_CLXX_T_update] on [dbo].[FC_RK_CLXX_T]  
instead   of  update  
as begin  
  
  if update(FC_CL_ID) or update(DJ) begin  
    Update FC_CL_QCKC_T Set FC_CL_ID=i.FC_CL_ID,DJ=i.DJ  
           From FC_CL_QCKC_T br , Deleted   d ,Inserted i   
           Where br.FC_RKJL_ID=i.ID   
  end   
  if update(SFSH) begin  
    Update FC_CL_QCKC_T Set SFSH=i.SFSH
           From FC_CL_QCKC_T br , Inserted i   
           Where br.FC_RKJL_ID=i.ID   
  end  
  
end

------解决方案--------------------
SQL code

--這樣建，主鍵換成你的主鍵關聯就可以了
CREATE trigger [FC_RK_CLXX_T_update] on [dbo].[FC_RK_CLXX_T]  
instead   of  update  
as begin  
  
  if update(FC_CL_ID) or update(DJ) begin  
    Update FC_CL_QCKC_T Set FC_CL_ID=i.FC_CL_ID,DJ=i.DJ  
           From FC_CL_QCKC_T br , Deleted   d ,Inserted i   
           Where br.FC_RKJL_ID=i.ID   
  end   

  if update(SFSH)
    update FC_RK_CLXX_T set SFSH=i.SFSH from inserted i
        where i.主鍵=FC_RK_CLXX_T.主鍵
end