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Building the Unstructured Data Warehouse: Architecture, Analysis, and Design by Krish Krishnan, W. H. Inmon

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Another kind of index that can be created is the named value index. The named value index is created by identifying beginning and ending delimiters. The value found between the beginning and ending delimiters is then chosen for the index value.

Named value indexes are most frequently used where there is much repetitive information. A named value index has the added benefit in that not only is the index created, but the name of the index is known as well. For example, suppose that an analyst has a collection of resumes. The analyst may use named value index processing to identify the names off of the resumes. In doing so, one type of index can be separated from another type of index. For example, on resumes there may be indexes ...

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