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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: International Conference On Information And Knowledge Management, Proceedings Título del capítulo: Measuring referential integrity in distributed databases
Autores UNAM: JAVIER GARCIA GARCIA;
Autores externos: Idioma: InglésAño de publicación: 2007Palabras clave:
Common projects; Data quality; Database integration; Database interoperability; Distributed database; Distributed query; Referential integrity; Relational Database; Scientific database; Interoperability; Knowledge management; Quality assurance; Total quality management; Database systems
Resumen:
Distributed relational databases are used by different organizations located at multiple sites that work together on common projects. In this article, we focus on distributed relational databases with incomplete and inconsistent content. We propose to measure referential integrity errors in them for integration and interoperability purposes. We propose local and global referential integrity metrics at three levels: column, table and database. We assume each table can be asynchronously updated at any site and new records are periodically broadcasted to all sites. We explain several distributed query optimization issues. Our proposal is useful in database integration, multiple database interoperability and data quality assurance. We discuss applications of our proposal in distributed scientific databases.
