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» Executing Nested Queries
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EDBT
2004
ACM
313views Database» more  EDBT 2004»
16 years 6 months ago
XQzip: Querying Compressed XML Using Structural Indexing
XML makes data flexible in representation and easily portable on the Web but it also substantially inflates data size as a consequence of using tags to describe data. Although many...
James Cheng, Wilfred Ng
180
Voted
DBPL
1995
Springer
106views Database» more  DBPL 1995»
15 years 10 months ago
On Impossibility of Decremental Recomputation of Recursive Queries in Relational Calculus and SQL
We study the problem of maintaining recursively-de ned views, such as the transitive closure of a relation, in traditional relational languages that do not have recursion mechanis...
Guozhu Dong, Leonid Libkin, Limsoon Wong
BMCBI
2008
121views more  BMCBI 2008»
15 years 6 months ago
OntoDas - a tool for facilitating the construction of complex queries to the Gene Ontology
Background: Ontologies such as the Gene Ontology can enable the construction of complex queries over biological information in a conceptual way, however existing systems to do thi...
Kieran O'Neill, Alexander García Castro, An...
ENTCS
2008
100views more  ENTCS 2008»
15 years 6 months ago
Implementing an EJB3-Specific Graph Transformation Plugin by Using Database Independent Queries
The current paper presents a novel approach to implement a graph transformation engine as an EJB3-specific plugin by using EJB QL queries for pattern matching. The essence of the ...
Gergely Varró
242
Voted
ICDE
2012
IEEE
269views Database» more  ICDE 2012»
13 years 9 months ago
A Deep Embedding of Queries into Ruby
—We demonstrate SWITCH, a deep embedding of relational queries into RUBY and RUBY on RAILS. With SWITCH, there is no syntactic or stylistic difference between RUBY programs that ...
Torsten Grust, Manuel Mayr