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Book Overview & Buying
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Table Of Contents
The Data Warehouse Toolkit - Third Edition
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We explore procurement processes in this chapter. This subject area has obvious cross-industry appeal because it is applicable to any organization that acquires products or services for either use or resale.
In addition to developing several purchasing models, this chapter provides in-depth coverage of the techniques for handling dimension table attribute value changes. Although descriptive attributes in dimension tables are relatively static, they are subject to change over time. Product lines are restructured, causing product hierarchies to change. Customers move, causing their geographic information to change. We’ll describe several approaches to deal with these inevitable dimension table changes. Followers of the Kimball methods will recognize the type 1, 2, and 3 techniques. Continuing in this tradition, we’ve expanded the slowly changing dimension technique line-up with types 0, 4, 5, 6, and 7.
Chapter 5 discusses the following concepts:
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