q29.sql

SELECT
  i_item_id,
  i_item_desc,
  s_store_id,
  s_store_name,
  sum(ss_quantity) AS store_sales_quantity,
  sum(sr_return_quantity) AS store_returns_quantity,
  sum(cs_quantity) AS catalog_sales_quantity
FROM
  store_sales, store_returns, catalog_sales, date_dim d1, date_dim d2,
  date_dim d3, store, item
WHERE
  d1.d_moy = 9
    AND d1.d_year = 1999
    AND d1.d_date_sk = ss_sold_date_sk
    AND i_item_sk = ss_item_sk
    AND s_store_sk = ss_store_sk
    AND ss_customer_sk = sr_customer_sk
    AND ss_item_sk = sr_item_sk
    AND ss_ticket_number = sr_ticket_number
    AND sr_returned_date_sk = d2.d_date_sk
    AND d2.d_moy BETWEEN 9 AND 9 + 3
    AND d2.d_year = 1999
    AND sr_customer_sk = cs_bill_customer_sk
    AND sr_item_sk = cs_item_sk
    AND cs_sold_date_sk = d3.d_date_sk
    AND d3.d_year IN (1999, 1999 + 1, 1999 + 2)
GROUP BY
  i_item_id, i_item_desc, s_store_id, s_store_name
ORDER BY
  i_item_id, i_item_desc, s_store_id, s_store_name
LIMIT 100;