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--
--    http://www.apache.org/licenses/LICENSE-2.0
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--

--q89.sql--

 select *
 from(
 select i_category, i_class, i_brand,
       s_store_name, s_company_name,
       d_moy,
       sum(ss_sales_price) sum_sales,
       avg(sum(ss_sales_price)) over
         (partition by i_category, i_brand, s_store_name, s_company_name)
         avg_monthly_sales
 from item, store_sales, date_dim, store
 where ss_item_sk = i_item_sk and
      ss_sold_date_sk = d_date_sk and
      ss_store_sk = s_store_sk and
      d_year in (1999) and
       ((i_category in ('Books','Electronics','Sports') and
          i_class in ('computers','stereo','football'))
      or (i_category in ('Men','Jewelry','Women') and
           i_class in ('shirts','birdal','dresses')))
 group by i_category, i_class, i_brand,
         s_store_name, s_company_name, d_moy) tmp1
 where case when (avg_monthly_sales <> 0) then (abs(sum_sales - avg_monthly_sales) / avg_monthly_sales) else null end > 0.1
 order by sum_sales - avg_monthly_sales, s_store_name
 limit 100
            
