select * from (select i_category ,i_class ,i_brand ,i_product_name ,d_year ,d_qoy ,d_moy ,s_store_id ,sumsales ,rank() over (partition by i_category order by sumsales desc) rk from (select i_category ,i_class ,i_brand ,i_product_name ,d_year ,d_qoy ,d_moy ,s_store_id ,sum(coalesce(ss_sales_price*ss_quantity,0)) sumsales from store_sales ,date_dim ,store ,item where store_sales.ss_sold_date_sk=date_dim.d_date_sk and store_sales.ss_item_sk=item.i_item_sk and store_sales.ss_store_sk = store.s_store_sk and d_month_seq between 1193 and 1193+11 group by i_category, i_class, i_brand, i_product_name, d_year, d_qoy, d_moy,s_store_id with rollup)dw1) dw2 where rk <= 100 order by i_category ,i_class ,i_brand ,i_product_name ,d_year ,d_qoy ,d_moy ,s_store_id ,sumsales ,rk limit 100;