Data Integration and Data Exchange

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United States Google TechTalks
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Published on ● Video Link: https://www.youtube.com/watch?v=dLo8meG4TJQ


Duration: 53:30
5,940 views
9

Google TechTalks
March 24, 2006

Alan Nash

ABSTRACT
I will discuss two fundamental problems in information integration:

(1) how to answer a query over a public interface which combines data from several sources and (2) how to create a single database conforming to the public interface which combines data from several sources.

I consider the case where the sources are relational databases, where the public interface is a public schema (a specification of the format of a database), and where the sources are related to the public schema by a mapping that is specified by constraints.



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