为何用游标无法取到全部记录

create or replace procedure P_VAC_SP_INSERT is

  V_attr_id       attr.attr_id%TYPE;

  V_attr_value_id attr_value.attr_value_id%TYPE;

  v_Errorcode        Varchar2(20);

  v_Errormsg         Varchar2(1024);

  i_Step             Number;



  CURSOR C_sp_code IS

    SELECT party_id

      FROM tmp_ldl_sp a

   GROUP BY a.party_id;



begin



  i_Step:=0;

  dbms_output.put_line('begin');



  SELECT a.attr_id

    INTO V_attr_id

    FROM attr a

   WHERE a.attr_name LIKE '%SP Code%'; 



  OPEN C_sp_code;   

    i_Step:=1;

    FETCH C_sp_code INTO V_attr_value_id; 

    WHILE C_sp_code%FOUND LOOP



               FETCH C_sp_code INTO V_attr_value_id;

               dbms_output.put_line('V_attr_value_id=' || V_attr_value_id);

               DBMS_OUTPUT.PUT_LINE('记录数:'|| C_sp_code %ROWCOUNT);

    END LOOP;

    

  CLOSE C_sp_code;



  EXCEPTION     

    When Others Then

      v_Errorcode := Sqlcode;

      v_Errormsg  := Sqlerrm;

      Insert Into P_VAC_SP_INSERT_log

      Values

        (V_attr_value_id, i_Step, v_Errorcode, v_Errormsg, Sysdate);

      Commit;



end P_VAC_SP_INSERT;