2.4. Querying XML
As already mentioned, Tamino XML Server supports methods to directly retrieve documents that were previously stored using Tamino (e.g., direct addressing of documents via URL). This includes documents with mapping to external data sources or to functions. However, just retrieving documents by their name or by their identifier is only part of the functionality needed in an XML database system. Powerful query facilities must complement the direct access methods.
2.4.1. Query Language—Tamino X-Query
Currently, there is no standardized XML query language. However, there is W3C activity to define an XML query language, called XQuery (Boag et al. 2002), but it is still in draft status. As a consequence, database systems that store ...
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