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» On the Expressive Power of Node Construction in XQuery
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WEBDB
2005
Springer
105views Database» more  WEBDB 2005»
13 years 10 months ago
On the Expressive Power of Node Construction in XQuery
In the relational model it has been shown that the flat relational algebra has the same expressive power as the nested relational algebra, as far as queries over flat relations ...
Wim Le Page, Jan Hidders, Philippe Michiels, Jan P...
DBPL
2005
Springer
93views Database» more  DBPL 2005»
13 years 6 months ago
On the Expressive Power of XQuery Fragments
XQuery is known to be a powerful XML query language with many bells and whistles. For many common queries we do not need all the expressive power of XQuery. We investigate the eff...
Jan Hidders, Stefania Marrara, Jan Paredaens, Roel...
IS
2008
13 years 4 months ago
On the expressibility of functions in XQuery fragments
XQuery is a powerful XML query language with many features and syntactic constructs. For many common queries we do not need all the expressive power of XQuery. We investigate the ...
Jan Hidders, Stefania Marrara, Jan Paredaens, Roel...
WWW
2004
ACM
14 years 5 months ago
Texquery: a full-text search extension to xquery
One of the key benefits of XML is its ability to represent a mix of structured and unstructured (text) data. Although current XML query languages such as XPath and XQuery can expr...
Sihem Amer-Yahia, Chavdar Botev, Jayavel Shanmugas...
SYRCODIS
2008
120views Database» more  SYRCODIS 2008»
13 years 6 months ago
Efficient Implementation of XQuery Constructor Expressions
Element constructor is one of most expensive operations of the XQuery language as it requires deep copy of the nodes which make up the content of the constructed element. In this ...
Leonid Novak, Maxim Grinev, Ilya Taranov