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-- this work for additional information regarding copyright ownership.
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-- (the "License"); you may not use this file except in compliance with
-- the License.  You may obtain a copy of the License at
--
--    http://www.apache.org/licenses/LICENSE-2.0
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-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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-- limitations under the License.
--

--q54.sql--

 with my_customers as (
 select distinct c_customer_sk
        , c_current_addr_sk
 from
        ( select cs_sold_date_sk sold_date_sk,
                 cs_bill_customer_sk customer_sk,
                 cs_item_sk item_sk
          from   catalog_sales
          union all
          select ws_sold_date_sk sold_date_sk,
                 ws_bill_customer_sk customer_sk,
                 ws_item_sk item_sk
          from   web_sales
         ) cs_or_ws_sales,
         item,
         date_dim,
         customer
 where   sold_date_sk = d_date_sk
         and item_sk = i_item_sk
         and i_category = 'Women'
         and i_class = 'maternity'
         and c_customer_sk = cs_or_ws_sales.customer_sk
         and d_moy = 12
         and d_year = 1998
 )
 , my_revenue as (
 select c_customer_sk,
        sum(ss_ext_sales_price) as revenue
 from   my_customers,
        store_sales,
        customer_address,
        store,
        date_dim
 where  c_current_addr_sk = ca_address_sk
        and ca_county = s_county
        and ca_state = s_state
        and ss_sold_date_sk = d_date_sk
        and c_customer_sk = ss_customer_sk
        and d_month_seq between (select distinct d_month_seq+1
                                 from   date_dim where d_year = 1998 and d_moy = 12)
                           and  (select distinct d_month_seq+3
                                 from   date_dim where d_year = 1998 and d_moy = 12)
 group by c_customer_sk
 )
 , segments as
 (select cast((revenue/50) as integer) as segment from my_revenue)
 select segment, count(*) as num_customers, segment*50 as segment_base
 from segments
 group by segment
 order by segment, num_customers
 limit 100
            
