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RDBMS support for one-to-many data transformations
{ Wed, 27 Oct 2010, 15h00 }

By: Helena Galhardas  [ show info ]

Data transformations are essential in the context of data migration, data integration and data warehousing. A data transformation is the fundamental unit of work in each of these processes. One-to-many data transformations constitute a particular class of data transformations that produce several output records for each input record. We describe this class of data transformations, the contexts in which they are useful, and their support by Relational technology. We propose a benchmark for comparing the performance of the implementation methods offered by Relational Database Management Systems (RDBMS) for supporting one-to-many data transformations. Furthermore, we compare three different RDBMS in regard to their performance and expressive power, when faced with one-to-many data transformations, and report the results obtained.


Hosted by: Software Systems

Location: DI seminars room

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