History fact_id tertiary_id (FK) secondary_id (FK) location_id (FK) (Zeus web server)
History fact_id tertiary_id (FK) secondary_id (FK) location_id (FK) time_id (FK) buyer_id (FK) seller_id (FK) history_buyer history_buyer_comment_date history_buyer_comments history_seller history_seller_comment_date history_seller_comments Location location_id region_id (FK) country_id (FK) state_id (FK) city_id (FK) City city_id state_id (FK) city State state_id country_id (FK) state Country country_id region_id (FK) country Seller seller_id popularity_rating join_date Category_Secondary secondary_id primary_id (FK) secondary Category_Tertiary tertiary_id secondary_id (FK) tertiary Buyer buyer_id popularity_rating join_date Time time_id year_id (FK) quarter_id (FK) month_id (FK) Quarter quarter_id year_id (FK) quarter Month month_id quarter_id (FK) month Year year_id year Buyer_Name buyer_id (FK) name Buyer_Address buyer_id (FK) address Category_Primary primary_id primary Seller_Nulls seller_id (FK) return_policy international Seller_Payment Methods seller_id (FK) payment_method Seller_Name seller_id (FK) name Seller_Address seller_id (FK) address Region region_id region Figure 10-36: A data warehouse HISTORY fact table snowflake schema (a history data mart).
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