The global data warehouse introduces a whole new world of design issues  As soon as the geographic spread of our data warehouse crosses a time zone or a national boundary, a whole host of design issues arise. For the sake of a label, let’s call such a warehouse a global data warehouse, and let’s collect all […]

According to the Webster’s Unabridged Dictionary, a surrogate is an “artificial or synthetic product that is used as a substitute for a natural product.” Thatýs a great definition for the surrogate keys we use in data warehouses. A surrogate key is an artificial or synthetic key that is used as a substitute for a natural […]