Abstract
As XML has become popular as a document standard in the World Wide Web, a lot of research has been done on the XML storage systems for storing and managing XML documents using existing DBMSs. Most of the research activities, however, assume a relational DBMS instead of an object-oriented/object-relational (OO/OR) DBMS, which offers more powerful modeling capabilities. In this paper, we present the design and implementation of an XML storage system designed for an OO/OR DBMS. Specifically, we first analyze the mapping from an XML document structure to OO/OR database schema. Second, we propose a method for describing the mapping using a standard language called the XML Schema Language. Third, we propose system catalog classes for storing the mapping information specified by users in the database. Fourth, we propose a detailed algorithm for storing XML documents in an OO/OR database, based on the mapping information. We believe the proposed system is practically usable for object-oriented programmers and DBMS implementors.
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