On the Semantics of Updates in a Functional Language

Provided by: RWTH Aachen University
Topic: Data Management
Format: PDF
Issues related to updating data in native XML (eXtensible Markup Language) database systems are studied extensively now-a-days. In this paper, the authors consider a problem of updating typed XML documents having their schema described by a Document Type Definition (DTD) without breaking their validity and with ensured transaction consistency. They present a way how to express constructs available in DTD by using a functional framework and propose algorithms for performing insert, replace and delete operations.

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