| select count(*) from ( | |
| select distinct c_last_name, c_first_name, d_date | |
| from store_sales, date_dim, customer | |
| where store_sales.ss_sold_date_sk = date_dim.d_date_sk | |
| and store_sales.ss_customer_sk = customer.c_customer_sk | |
| and d_month_seq between 1212 and 1212 + 11 | |
| intersect | |
| select distinct c_last_name, c_first_name, d_date | |
| from catalog_sales, date_dim, customer | |
| where catalog_sales.cs_sold_date_sk = date_dim.d_date_sk | |
| and catalog_sales.cs_bill_customer_sk = customer.c_customer_sk | |
| and d_month_seq between 1212 and 1212 + 11 | |
| intersect | |
| select distinct c_last_name, c_first_name, d_date | |
| from web_sales, date_dim, customer | |
| where web_sales.ws_sold_date_sk = date_dim.d_date_sk | |
| and web_sales.ws_bill_customer_sk = customer.c_customer_sk | |
| and d_month_seq between 1212 and 1212 + 11 | |
| ) hot_cust | |
| limit 100; | |