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» A Query Language for EER Schemas
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ICDT
1997
ACM
90views Database» more  ICDT 1997»
13 years 10 months ago
Adding Structure to Unstructured Data
We develop a new schema for unstructured data. Traditional schemas resemble the type systems of programming languages. For unstructured data, however, the underlying type may be mu...
Peter Buneman, Susan B. Davidson, Mary F. Fernande...
TKDE
2012
194views Formal Methods» more  TKDE 2012»
11 years 8 months ago
A Query Formulation Language for the Data Web
— We present a query formulation language (called MashQL) in order to easily query and fuse structured data on the web. The main novelty of MashQL is that it allows people with l...
Mustafa Jarrar, Marios D. Dikaiakos
DEXA
2004
Springer
180views Database» more  DEXA 2004»
13 years 11 months ago
Algebra-to-SQL Query Translation for Spatio-Temporal Databases
Although many spatio-temporal conceptual models has been proposed in the last years, users must express their queries on the underlying physical data structures. In the context of ...
Mohammed Minout, Esteban Zimányi
OWLED
2007
13 years 7 months ago
OWL SAIQL - An OWL DL Query Language for Ontology Extraction
Existing approaches for querying OWL DL do either only operate on syntactic constructs without taking into account the semantics of OWL or do only have a restricted access to the T...
Alexander Kubias, Simon Schenk, Steffen Staab, Jef...
SIGMOD
2001
ACM
132views Database» more  SIGMOD 2001»
14 years 6 months ago
Describing Semistructured Data
We introduce a rich language of descriptions for semistructured tree-like data, and we explain how such descriptions relate to the data they describe. Various query languages and ...
Luca Cardelli