select    (to_char(t.outcome_date_sale,'yymm'))  as outcome_date_sale ,
        sum(t.outcome_count) as outcome_count,
        sum(t.cnt_people) as cnt_people
from MV_CORE_PRODUCT t  ,
    t_partner p
 where t.outcome_date_sale between to_date(:P22_DATE_BEGIN,'dd.mm.yy') and  to_date(:P22_DATE_END,'dd.mm.yy')
 and t.product_group_id = :P22_PRODUCT_GROUP_ID
 and p.partner_id = t.remote_partner_id 
 group by   (to_char(t.outcome_date_sale,'yymm'))
 order by   (to_char(t.outcome_date_sale,'yymm'))