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BTW
2003
Springer
94views Database» more  BTW 2003»
15 years 5 months ago
The Paradigm of Relational Indexing: a Survey
Abstract: In order to achieve efficient execution plans for queries comprising userdefined data types and predicates, the database system has to be provided with appropriate index ...
Hans-Peter Kriegel, Martin Pfeifle, Marco Pöt...
DBPL
1995
Springer
106views Database» more  DBPL 1995»
15 years 3 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
ACL
2009
14 years 9 months ago
System for Querying Syntactically Annotated Corpora
This paper presents a system for querying treebanks. The system consists of a powerful query language with natural support for cross-layer queries, a client interface with a graph...
Petr Pajas, Jan Stepánek
CIKM
2011
Springer
13 years 12 months ago
Integrating and querying web databases and documents
There exist many interrelated information sources on the Internet that can be categorized into structured (database) and semistructured (documents). A key challenge is to integrat...
Carlos Garcia-Alvarado, Carlos Ordonez
ICDE
2000
IEEE
156views Database» more  ICDE 2000»
16 years 1 months ago
Oracle8i - The XML Enabled Data Management System
XML is here as the internet standard for information exchange among e-businesses and applications. With its dramatic adoption and its ability to model structured, unstructured and...
Sandeepan Banerjee, Vishu Krishnamurthy, Muralidha...