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» An Expressive Language for Linear Spatial Database Queries
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ESOP
2008
Springer
13 years 9 months ago
Regular Expression Subtyping for XML Query and Update Languages
Abstract. XML database query languages such as XQuery employ regular expression types with structural subtyping. Subtyping systems typically have two presentations, which should be...
James Cheney
GVD
2009
125views Database» more  GVD 2009»
13 years 5 months ago
A quantum logic-based query processing approach for extending relational query languages
Evaluating a traditional database query against a data tuple returns a true on match and a false on mismatch. Unfortunately, there are many application scenarios where such an eva...
Sebastian Lehrack
EDBT
2008
ACM
158views Database» more  EDBT 2008»
14 years 7 months ago
Expressive query specification through form customization
A form-based query interface is usually the preferred means to provide an unsophisticated user access to a database. Not only is such an interface easy to use, requiring no techni...
Magesh Jayapandian, H. V. Jagadish
SIGMOD
2008
ACM
101views Database» more  SIGMOD 2008»
14 years 7 months ago
On Query Algebras for Probabilistic Databases
This article proposes a core query algebra for probabilistic databases. In essence, this core is part of the query languages of most probabilistic database systems proposed so far...
Christoph Koch
FQAS
2004
Springer
63views Database» more  FQAS 2004»
14 years 26 days ago
On Querying Ontologies and Databases
This paper concerns the motivation for and subsequently the analysis of proposed additions, in the form of new operators, to a concept language Ontolog for use in querying a conten...
Henrik Bulskov, Rasmus Knappe, Troels Andreasen