A method, apparatus, and article of manufacture for the incremental maintenance of summary tables with complex grouping expressions where the change (insert/delete/update) of a single row of the base data can affect multiple rows in the summary table. The invention applies the complex grouping expression...http://www.google.fr/patents/US6763352?utm_source=gb-gplus-shareBrevet US6763352 - Incremental maintenance of summary tables with complex grouping expressions
Incremental maintenance of summary tables with complex grouping expressions
