We present in this paper a system for rewriting user-speciļ¬c XPath queries for higher sharing of common sub-expressions in a streaming environment. We rewrite these queries acco...
Abstract. Past research work on modeling and managing temporal information has, so far, failed to elicit support in commercial database systems. The increasing popularity of XML oļ...
The XML support in relational databases and the SQL/XML language are still relatively new as compared to purely relational databases and traditional SQL. Today, most database user...
There are three set operators deļ¬ned in XQuery, namely union, intersect and except. They take node sequences as operands, in which each node is identiļ¬ed by its node-ID and tr...
The preservation of digital artifacts represents an unanswered challenge for the modern information society: XML and its query languages provide an eļ¬ective environment to addre...