Local Schemas Modifications Propagation and Maintenance of Metadata in Multidatabase System

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Provided by: International Journal of Computer Applications
Topic: Data Management
Format: PDF
One of the challenging problems in the multidatabase systems is to find the most viable solution to the problem of interoperability of distributed heterogeneous autonomous local component databases. This has resulted in the creation of a global schema over set of local component database schemas to provide a uniform representation of local schemas. This paper is to maintain the global schema and the global directory/dictionary/metadata as the local schemas are autonomous and evolve over time.
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