神一样的代码

declare
  cursor c_update is
    select b.acct_skid, a.acct_id
      from opt_acct_fdim a, opt_acct_fdim_bkp b
     where a.acct_id = b.acct_id;
  v_counter number;
begin
  v_counter := 0;
  for v_row in c_update loop
    update opt_acct_fdim
       set acct_skid = v_row.acct_skid
     where acct_id = v_row.acct_id;   ---注意，这里没有rowid
    v_counter := v_counter + 1;
    if (v_counter >= 1000) then
      commit;
      v_counter := 0;
    end if;
    end loop;
    commit;
end;
/