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Extended aggregations for databases with referential integrity issues
2010
Data & Knowledge Engineering
Querying databases with incomplete or inconsistent content remains a broad and difficult problem. In this work, we study how to improve aggregations computed on databases with referential errors in the context of database integration, where each source database has different tables, columns with similar content across multiple databases, but different referential integrity constraints. Thus, a query in an integrated database may involve tables and columns with referential integrity errors. In a
doi:10.1016/j.datak.2009.08.008
fatcat:jd2oiwy65bbpvd2v3wgaptkc6e