21 lines
906 B
SQL
21 lines
906 B
SQL
select count(*)
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from ((select distinct c_last_name, c_first_name, d_date
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from store_sales, date_dim, customer
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where store_sales.ss_sold_date_sk = date_dim.d_date_sk
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and store_sales.ss_customer_sk = customer.c_customer_sk
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and d_month_seq between 1221 and 1221+11)
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except
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(select distinct c_last_name, c_first_name, d_date
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from catalog_sales, date_dim, customer
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where catalog_sales.cs_sold_date_sk = date_dim.d_date_sk
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and catalog_sales.cs_bill_customer_sk = customer.c_customer_sk
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and d_month_seq between 1221 and 1221+11)
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except
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(select distinct c_last_name, c_first_name, d_date
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from web_sales, date_dim, customer
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where web_sales.ws_sold_date_sk = date_dim.d_date_sk
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and web_sales.ws_bill_customer_sk = customer.c_customer_sk
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and d_month_seq between 1221 and 1221+11)
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) cool_cust
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;
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