with wss as
         (select d_week_seq,
                 ss_store_sk,
                 sum(case when (d_day_name = 'Sunday') then ss_sales_price else null end)    sun_sales,
                 sum(case when (d_day_name = 'Monday') then ss_sales_price else null end)    mon_sales,
                 sum(case when (d_day_name = 'Tuesday') then ss_sales_price else null end)   tue_sales,
                 sum(case when (d_day_name = 'Wednesday') then ss_sales_price else null end) wed_sales,
                 sum(case when (d_day_name = 'Thursday') then ss_sales_price else null end)  thu_sales,
                 sum(case when (d_day_name = 'Friday') then ss_sales_price else null end)    fri_sales,
                 sum(case when (d_day_name = 'Saturday') then ss_sales_price else null end)  sat_sales
          from store_sales,
               date_dim
          where d_date_sk = ss_sold_date_sk
          group by d_week_seq, ss_store_sk)
select s_store_name1
     , s_store_id1
     , d_week_seq1
     , sun_sales1 / sun_sales2
     , mon_sales1 / mon_sales2
     , tue_sales1 / tue_sales2
     , wed_sales1 / wed_sales2
     , thu_sales1 / thu_sales2
     , fri_sales1 / fri_sales2
     , sat_sales1 / sat_sales2
from (select s_store_name   s_store_name1
           , wss.d_week_seq d_week_seq1
           , s_store_id     s_store_id1
           , sun_sales      sun_sales1
           , mon_sales      mon_sales1
           , tue_sales      tue_sales1
           , wed_sales      wed_sales1
           , thu_sales      thu_sales1
           , fri_sales      fri_sales1
           , sat_sales      sat_sales1
      from wss,
           store,
           date_dim d
      where d.d_week_seq = wss.d_week_seq
        and ss_store_sk = s_store_sk
        and d_month_seq between 1212 and 1212 + 11) y,
     (select s_store_name   s_store_name2
           , wss.d_week_seq d_week_seq2
           , s_store_id     s_store_id2
           , sun_sales      sun_sales2
           , mon_sales      mon_sales2
           , tue_sales      tue_sales2
           , wed_sales      wed_sales2
           , thu_sales      thu_sales2
           , fri_sales      fri_sales2
           , sat_sales      sat_sales2
      from wss,
           store,
           date_dim d
      where d.d_week_seq = wss.d_week_seq
        and ss_store_sk = s_store_sk
        and d_month_seq between 1212 + 12 and 1212 + 23) x
where s_store_id1 = s_store_id2
  and d_week_seq1 = d_week_seq2 - 52
order by s_store_name1, s_store_id1, d_week_seq1 limit 100
