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EFDBS
2001

Extensible Grouping and Aggregation for Data Reconciliation

13 years 5 months ago
Extensible Grouping and Aggregation for Data Reconciliation
New applications from the areas of analytical data processing and data integration require powerful features to condense and reconcile available data. Object-relational and other data management systems available today provide only limited concepts to deal with these requirements. The general concept of grouping and aggregation appears to be a fitting paradigm for a number of the mentioned issues, but in its common form of equality based groups and restricted aggregate functions a number of problems remain unsolved. Various extensions to this concept have been introduced over the last years, especially regarding user-defined functions for aggregation and derivation of grouping properties. We propose generic interfaces for user-defined grouping and aggregation as part of a SQL extension, allowing for more complex functions, for instance integration of data mining algorithms. Furthermore, we discuss high-level language primitives for common applications and illustrate the approach by int...
Eike Schallehn, Kai-Uwe Sattler, Gunter Saake
Added 31 Oct 2010
Updated 31 Oct 2010
Type Conference
Year 2001
Where EFDBS
Authors Eike Schallehn, Kai-Uwe Sattler, Gunter Saake
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