mysql no parameter stored procedure

DROP PROCEDURE  IF EXISTS `Sum_Month_Cus_Count`;

CREATE  PROCEDURE `Sum_Month_Cus_Count`()
BEGIN
    declare v_cur_Date date;
    declare v_pre1_Date date;
    declare v_year,v_month,v_count int;
    set v_cur_Date = CURDATE();
    set v_pre1_Date = date_add(v_cur_Date, interval -1 day) ;
    set v_year =year(v_pre1_Date);
    set v_month = month(v_pre1_Date);
    select count(syear) into v_count from rpl_month_cycle where syear =v_year and smonth=v_month;
    if v_count=0 THEN
       INSERT into rpl_month_cycle(syear,smonth) values(v_year,v_month);
    end if;
    delete from rpl_cus_month_sum where syear =v_year and smonth=v_month;

    select v_year,v_month ,ta.groupId,IFNULL(tb.addNum,0),0
    from cus_group as ta
    left join
    (
       select egroupId,count(egroupId) as addNum from cus_costomer_up_history where year(changeDate) = v_year and month(changeDate)=v_month group by egroupId
    ) as tb
    on ta.groupId = tb.egroupId
    where ta.IsSum =1;

    insert into rpl_cus_month_sum
    select v_year,v_month ,ta.groupId,IFNULL(tb.addNum,0),0
    from cus_group as ta
    left join
    (
       select egroupId,count(egroupId) as addNum from cus_costomer_up_history where year(changeDate) = v_year and month(changeDate)=v_month group by egroupId
    ) as tb
    on ta.groupId = tb.egroupId
    where ta.IsSum =1;
   
    update rpl_cus_month_sum as ta,
    (  
       select groupId,count(groupId) as totalNum from cus_customer where State=1 group by groupId
    ) as tb
    set ta.totalNum = tb.totalNum 
    where ta.groupId = tb.groupId
    and ta.syear = v_year
    and ta.smonth=v_month;  
end