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Identifying Unnecessary Tables

by Robert Ware – Description: Recently I was asked to determine which tables of a very large data warehouse instance were still being used. This instance has been around for quite a few years, and the concern was that several tables were not needed anymore. I created the following method to aid in t

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More on XML and compression

In an earlier installment of this column, David examined techniques by which XML documents can be reversibly restructured to improve compression. For large XML documents and embedded processes, however, restructuring an entire source prior to a compression pass might be impractical. In this installm