861 search results - page 34 / 173 » Relational Completeness of Query Languages for Annotated Dat... |
BMCBI
2005
14 years 9 months ago
2005
Background: Structural and functional research often requires the computation of sets of protein structures based on certain properties of the proteins, such as sequence features,...
ICDT
2007
ACM
15 years 3 months ago
2007
ACM
Abstract. We study containment of conjunctive queries that are evaluated over databases that may contain tuples with null values. We assume the semantics of SQL for single block qu...
CIKM
2009
Springer
15 years 4 months ago
2009
Springer
Due to an increasing volume of XML data, it is considered prudent to store XML data on an industry-strength database system instead of relying on a domain specific application or...
ICDE
2005
IEEE
15 years 3 months ago
2005
IEEE
Sybase's flagship database product, Adaptive Server Enterprise provides Native XML processing (NXS) support. In this paper we present our experience related to query processi...
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SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
The Pathfinder XQuery compiler has been enhanced by a new code generator that can target any SQL:1999-compliant relational database system (RDBMS). This code generator marks an im...