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» Towards a theory of schema-mapping optimization
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PODS
2008
ACM
152views Database» more  PODS 2008»
12 years 1 months ago
Towards a theory of schema-mapping optimization
A schema mapping is a high-level specification that describes the relationship between two database schemas. As schema mappings constitute the essential building blocks of data ex...
Ronald Fagin, Phokion G. Kolaitis, Alan Nash, Luci...
VLDB
2011
ACM
245views Database» more  VLDB 2011»
10 years 8 months ago
Normalization and optimization of schema mappings
Schema mappings are high-level speciļ¬cations that describe the relationship between two database schemas. They are an important tool in several areas of database research, notab...
Georg Gottlob, Reinhard Pichler, Vadim Savenkov
AMW
2009
11 years 2 months ago
Checking Containment of Schema Mappings (Preliminary Report)
In data exchange, data are materialised from a source schema to a target schema, according to suitable source-to-target constraints. Constraints are also expressed on the target sc...
Andrea Calì, Riccardo Torlone
PODS
2010
ACM
173views Database» more  PODS 2010»
11 years 6 months ago
Foundations of schema mapping management
In the last few years, a lot of attention has been paid to the speciļ¬cation and subsequent manipulation of schema mappings, a problem which is of fundamental importance in metad...
Marcelo Arenas, Jorge Pérez, Juan L. Reutte...
PODS
2008
ACM
141views Database» more  PODS 2008»
12 years 1 months ago
On the complexity of deriving schema mappings from database instances
We introduce a theoretical framework for discovering relationships between two database instances over distinct and unknown schemata. This framework is grounded in the context of ...
Pierre Senellart, Georg Gottlob
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