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    PVLDB
    2010
    128views more  PVLDB 2010»
    Update Rewriting and Integrity Constraint Maintenance in a Schema Evolution Support System: PRISM++
    14 years 8 months ago
    Update Rewriting and Integrity Constraint Maintenance in a Schema Evolution Support System: PRISM++
    Download  yellowstone.cs.ucla.edu
    Supporting legacy applications when the database schema evolves represents a long-standing challenge of practical and theoretical importance. Recent work has produced algorithms a...
    Carlo Curino, Hyun Jin Moon, Alin Deutsch, Carlo Z...
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    SIGMOD
    1999
    ACM
    127views Database» more  SIGMOD 1999»
    An Adaptive Query Execution System for Data Integration
    15 years 1 months ago
    An Adaptive Query Execution System for Data Integration
    Download  www.cis.upenn.edu
    Query processing in data integration occurs over network-bound, autonomous data sources. This requires extensions to traditional optimization and execution techniques for three re...
    Zachary G. Ives, Daniela Florescu, Marc Friedman, ...
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    IJCAI
    2003
    93views Artificial Intelligence» more  IJCAI 2003»
    Logic Programs for Consistently Querying Data Integration Systems
    14 years 11 months ago
    Logic Programs for Consistently Querying Data Integration Systems
    Download  dli.iiit.ac.in
    We solve the problem of obtaining answers to queries posed to a mediated integration system un­ der the local-as-view paradigm that are consistent wrt to certain global integrity...
    Loreto Bravo, Leopoldo E. Bertossi
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    IJCAI
    2003
    148views Artificial Intelligence» more  IJCAI 2003»
    Query rewriting and answering under constraints in data integration systems
    14 years 11 months ago
    Query rewriting and answering under constraints in data integration systems
    Download  dli.iiit.ac.in
    In this paper we address the problem of query answering and rewriting in global-as-view data integration systems, when key and inclusion dependencies are expressed on the global i...
    Andrea Calì, Domenico Lembo, Riccardo Rosat...
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    SEBD
    2007
    114views Database» more  SEBD 2007»
    A New Type of Metadata for Querying Data Integration Systems
    14 years 11 months ago
    A New Type of Metadata for Querying Data Integration Systems
    Download  www.dbgroup.unimo.it
    Research on data integration has provided languages and systems able to guarantee an integrated intensional representation of a given set of data sources. A significant limitation...
    Sonia Bergamaschi, Francesco Guerra, Mirko Orsini,...
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