77 lines
2.9 KiB
SQL
77 lines
2.9 KiB
SQL
WITH all_sales AS
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( SELECT d_year ,
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i_brand_id ,
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i_class_id ,
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i_category_id ,
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i_manufact_id ,
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SUM(sales_cnt) AS sales_cnt ,
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SUM(sales_amt) AS sales_amt
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FROM
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(SELECT d_year ,
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i_brand_id ,
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i_class_id ,
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i_category_id ,
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i_manufact_id ,
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cs_quantity - COALESCE(cr_return_quantity,0) AS sales_cnt ,
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cs_ext_sales_price - COALESCE(cr_return_amount,0.0) AS sales_amt
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FROM catalog_sales
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JOIN item ON i_item_sk=cs_item_sk
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JOIN date_dim ON d_date_sk=cs_sold_date_sk
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LEFT JOIN catalog_returns ON (cs_order_number=cr_order_number
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AND cs_item_sk=cr_item_sk)
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WHERE i_category='Books'
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UNION SELECT d_year ,
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i_brand_id ,
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i_class_id ,
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i_category_id ,
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i_manufact_id ,
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ss_quantity - COALESCE(sr_return_quantity,0) AS sales_cnt ,
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ss_ext_sales_price - COALESCE(sr_return_amt,0.0) AS sales_amt
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FROM store_sales
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JOIN item ON i_item_sk=ss_item_sk
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JOIN date_dim ON d_date_sk=ss_sold_date_sk
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LEFT JOIN store_returns ON (ss_ticket_number=sr_ticket_number
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AND ss_item_sk=sr_item_sk)
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WHERE i_category='Books'
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UNION SELECT d_year ,
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i_brand_id ,
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i_class_id ,
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i_category_id ,
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i_manufact_id ,
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ws_quantity - COALESCE(wr_return_quantity,0) AS sales_cnt ,
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ws_ext_sales_price - COALESCE(wr_return_amt,0.0) AS sales_amt
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FROM web_sales
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JOIN item ON i_item_sk=ws_item_sk
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JOIN date_dim ON d_date_sk=ws_sold_date_sk
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LEFT JOIN web_returns ON (ws_order_number=wr_order_number
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AND ws_item_sk=wr_item_sk)
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WHERE i_category='Books') sales_detail
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GROUP BY d_year,
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i_brand_id,
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i_class_id,
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i_category_id,
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i_manufact_id)
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SELECT prev_yr.d_year AS prev_year ,
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curr_yr.d_year AS year_ ,
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curr_yr.i_brand_id ,
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curr_yr.i_class_id ,
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curr_yr.i_category_id ,
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curr_yr.i_manufact_id ,
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prev_yr.sales_cnt AS prev_yr_cnt ,
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curr_yr.sales_cnt AS curr_yr_cnt ,
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curr_yr.sales_cnt-prev_yr.sales_cnt AS sales_cnt_diff ,
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curr_yr.sales_amt-prev_yr.sales_amt AS sales_amt_diff
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FROM all_sales curr_yr,
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all_sales prev_yr
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WHERE curr_yr.i_brand_id=prev_yr.i_brand_id
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AND curr_yr.i_class_id=prev_yr.i_class_id
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AND curr_yr.i_category_id=prev_yr.i_category_id
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AND curr_yr.i_manufact_id=prev_yr.i_manufact_id
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AND curr_yr.d_year=2002
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AND prev_yr.d_year=2002-1
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AND CAST(curr_yr.sales_cnt AS DECIMAL(17,2))/CAST(prev_yr.sales_cnt AS DECIMAL(17,2))<0.9
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ORDER BY sales_cnt_diff,
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sales_amt_diff
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LIMIT 100;
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