Technical perspective - Schema mappings: rules for mixing data

Abstract

wHen YoU seARCH for flight tickets on you favorite Web site, your query is often dispatched to tens of databases to produce an answer. When you search for products on Amazon.com, you are seeing results from thousands of vendor databases that were developed before Amazon existed. Did you ever wonder how that happens? What is the theory behind it all? At the… (More)
DOI: 10.1145/1629175.1629200

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