16.5. Storage and Management of the Data Warehouse

This section presents the data warehouse implementation. First, we enumerate different solutions to store XML data. Next, we present the mapping we propose for storing XML data using a relational DBMS. Finally, we present the solution we have implemented to store the mapping rules concerning views in the data warehouse.

16.5.1. The Different Approaches to Storing XML Data

We briefly present here the different approaches to storing XML data. We can distinguish at least three categories:

  1. Flat Streams: In this approach XML data are stored in their textual form, by means of files or BLOB attributes in a DBMS. This method is very fast and easy for storing or retrieving whole documents. On the other ...

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