| with year_total as ( | |
| select c_customer_id customer_id | |
| ,c_first_name customer_first_name | |
| ,c_last_name customer_last_name | |
| ,c_preferred_cust_flag customer_preferred_cust_flag | |
| ,c_birth_country customer_birth_country | |
| ,c_login customer_login | |
| ,c_email_address customer_email_address | |
| ,d_year dyear | |
| ,sum(ss_ext_list_price-ss_ext_discount_amt) year_total | |
| ,'s' sale_type | |
| from customer | |
| ,store_sales | |
| ,date_dim | |
| where c_customer_sk = ss_customer_sk | |
| and ss_sold_date_sk = d_date_sk | |
| group by c_customer_id | |
| ,c_first_name | |
| ,c_last_name | |
| ,c_preferred_cust_flag | |
| ,c_birth_country | |
| ,c_login | |
| ,c_email_address | |
| ,d_year | |
| union all | |
| select c_customer_id customer_id | |
| ,c_first_name customer_first_name | |
| ,c_last_name customer_last_name | |
| ,c_preferred_cust_flag customer_preferred_cust_flag | |
| ,c_birth_country customer_birth_country | |
| ,c_login customer_login | |
| ,c_email_address customer_email_address | |
| ,d_year dyear | |
| ,sum(ws_ext_list_price-ws_ext_discount_amt) year_total | |
| ,'w' sale_type | |
| from customer | |
| ,web_sales | |
| ,date_dim | |
| where c_customer_sk = ws_bill_customer_sk | |
| and ws_sold_date_sk = d_date_sk | |
| group by c_customer_id | |
| ,c_first_name | |
| ,c_last_name | |
| ,c_preferred_cust_flag | |
| ,c_birth_country | |
| ,c_login | |
| ,c_email_address | |
| ,d_year | |
| ) | |
| select | |
| t_s_secyear.customer_id | |
| ,t_s_secyear.customer_first_name | |
| ,t_s_secyear.customer_last_name | |
| ,t_s_secyear.customer_email_address | |
| from year_total t_s_firstyear | |
| ,year_total t_s_secyear | |
| ,year_total t_w_firstyear | |
| ,year_total t_w_secyear | |
| where t_s_secyear.customer_id = t_s_firstyear.customer_id | |
| and t_s_firstyear.customer_id = t_w_secyear.customer_id | |
| and t_s_firstyear.customer_id = t_w_firstyear.customer_id | |
| and t_s_firstyear.sale_type = 's' | |
| and t_w_firstyear.sale_type = 'w' | |
| and t_s_secyear.sale_type = 's' | |
| and t_w_secyear.sale_type = 'w' | |
| and t_s_firstyear.dyear = 2001 | |
| and t_s_secyear.dyear = 2001+1 | |
| and t_w_firstyear.dyear = 2001 | |
| and t_w_secyear.dyear = 2001+1 | |
| and t_s_firstyear.year_total > 0 | |
| and t_w_firstyear.year_total > 0 | |
| and case when t_w_firstyear.year_total > 0 then t_w_secyear.year_total / t_w_firstyear.year_total else 0.0 end | |
| > case when t_s_firstyear.year_total > 0 then t_s_secyear.year_total / t_s_firstyear.year_total else 0.0 end | |
| order by t_s_secyear.customer_id | |
| ,t_s_secyear.customer_first_name | |
| ,t_s_secyear.customer_last_name | |
| ,t_s_secyear.customer_email_address | |
| limit 100; | |