Recently, the database research literature has seen an explosion of publications with the
goal of using an RDBMS to store and/or query XML data. The problems addressed and …

The widespread adoption of XML holds out the promise that document structure can be
exploited to specify precise database queries. However, the user may have only a limited …

Publisher Summary XML is emerging as a de facto standard for information exchange over
the Internet. Although XML documents could have rather complex internal structures, they …

XML documents are typically queried with a combination of value search and structure
search. While querying by values can leverage traditional database technologies …

Extensible markup language (XML) is emerging as a de facto standard for information
exchange among various applications on the World Wide Web. There has been a growing …

We propose a new way of indexing XML documents and processing twig patterns in an XML
database. Every XML document in the database can be transformed into a sequence of …

Dataspaces are collections of heterogeneous and partially unstructured data. Unlike data-
integration systems that also offer uniform access to heterogeneous data sources …

Several methods have been proposed to evaluate queries over a native XML DBMS, where
the queries specify both path and keyword constraints. These broadly consist of graph …

Publisher Summary Relational query processors derive much of their effectiveness from the
awareness of specific table properties like sort order, size, or absence of duplicate tuples …

Publisher Summary This chapter presents projection techniques that can be used to support
main-memory XQuery evaluation over large XML documents. The chapter introduces a path …