An XML-based framework for temporal database implementation

摘要

This paper presents an XML-based approach to implementing the parametric model of temporal databases. In the parametric model, attribute values are functions of time and the entire history of an object is modeled in terms of a single tuple. This property makes it difficult to adapt the parametric model within the conventional databases. However, XML is an attractive option for implementation because data boundaries are not problematic in XML. Native XML storage with pagination is used for storing temporal data and the DOM parser for the paginated XML storage is used for data access. The primitives for the query language are implemented using the DOM parser. Many artifacts, such as parse tree and expression tree are also represented in XML. We hope that this paradigm offers an elegant approach for implementation of complex data models.