new 在oracle的after 的 行级触发器里面可以使用吗？

Question

create or replace trigger T_A_Update_pk_Par_seat
  after insert of seat_code,et_code on par_seat  
  for each row
  /*================================================= */
  /*  功能描述：完成数据库完整性约束                  */
  /*  时间:     2002/3/29                             */
  /*  创建人:   王万里                                */
  /*  方法:根据外键约束修改par_seat、con_data_file、  */
  /*       par_commision                              */   
  /*===================================================*/
declare 
  v_Exist int;                --判断是不是存在接收文件
  v_source_file varchar2(12); --接收文件名字
  v_seat_code_len int; --席位代码长度
begin
  --处理击联删除
  if  deleting then
      delete from con_data_file where seat_code=:old.seat_code and et_code=:old.et_code;
      delete from par_commision where seat_code=:old.seat_code and et_code=:old.et_code;
  --处理击联update
  elsif updating then
      update con_data_file set seat_code=:new.seat_code,et_code=:new.et_code where seat_code=:old.seat_code and et_code=:old.et_code;
      update par_commision  set seat_code=:new.seat_code,et_code=:new.et_code where seat_code=:old.seat_code and et_code=:old.et_code;
  --处理击联insert
  elsif inserting then
        begin
             if trim(:new.et_code)='1'  then
                begin
                     --判断是不是已经有深圳的接收文件
                     select count(*) into v_Exist from con_data_file where fund_code=:new.fund_code and trim(et_code)='1';
                     if v_Exist=0 then
                        begin
                             insert into con_data_file(source_file,fund_code,seat_code,et_code,file_kind)
                             values('c:\data\sjshb.dbf',:new.fund_code,:new.seat_code,:new.et_code,'3');
                             insert into con_data_file(source_file,fund_code,seat_code,et_code,file_kind)
                             values('c:\data\sjstj.dbf',:new.fund_code,:new.seat_code,:new.et_code,'5');
                             insert into con_data_file(source_file,fund_code,seat_code,et_code,file_kind)
                             values('c:\data\sjshq.dbf',:new.fund_code,:new.seat_code,:new.et_code,'1');
                             insert into con_data_file(source_file,fund_code,seat_code,et_code,file_kind)
                             values('c:\data\sjsXX.dbf',:new.fund_code,:new.seat_code,:new.et_code,'1');
                       end;
                     end if;
                end; 
             else
             --插入深圳接收文件
            /*========================================================  */
            /* 根据席位代码的长度设计接收文件                           */
            /* 如果席位代码长度是3,然后就设计其接收文件是Xx000||席位代码*/
            /*==========================================================*/
                begin
                     v_seat_code_len:=length(:new.seat_code);
                     v_Exist:=0;
                     insert into con_data_file(source_file,fund_code,seat_code,et_code,file_kind)
                     values('c:\data\'||'Gh'||decode(v_seat_code_len,1,'0000'||:new.seat_code,2,'000'||:new.seat_code,'3','00'||:new.seat_code,4,'0'||:new.seat_code,:new.seat_code)||'.dbf',:new.fund_code,:new.seat_code,:new.et_code,'2');
                     insert into con_data_file(source_file,fund_code,seat_code,et_code,file_kind)
                     values('c:\data\'||'QS'||decode(v_seat_code_len,1,'0000'||:new.seat_code,2,'000'||:new.seat_code,'3','00'||:new.seat_code,4,'0'||:new.seat_code,:new.seat_code)||'.dbf',:new.fund_code,:new.seat_code,:new.et_code,'4');
                     select count(*) into v_Exist from con_data_file where fund_code=:new.fund_code and upper(trim(source_file))=upper('show128.dbf');  --判断行情文件是不是存在
                     if v_Exist=0 then
                        begin
                             insert into con_data_file(source_file,fund_code,seat_code,et_code,file_kind)
                             values('c:\data\Show128.dbf',:new.fund_code,:new.seat_code,:new.et_code,'0');
                        end;
                     end if;
               end;
            end if; 
       end;
  end if;
end T_Update_pk_Par_seat;
包错说：此类触发器的列表无效