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

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Both types of linkages have their advantages and disadvantages. Either the index needs to be constantly repaired or the analyst making the query needs to live with the fact that the index may be out of date. Neither a static nor a dynamic link is the proper choice in and of itself. The context of usage determines the correctness of the choice. Table 6.1 shows the tradeoffs of using static versus dynamic linkages.

Table 6.1 Comparing dynamic and static linkages

 

Disadvantage

Advantage

Dynamic linkage

Slow to process

Up to the second accuracy

Static linkage

Fast to process

Requires building and maintaining an index

 

Key Points

·         Building a “card catalog” of the documents that belong to the organization is an ...

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