The present invention is a method and system for using materialized views to compute answers to SQL queries with grouping and aggregation. A query is evaluated a using a materialized view. The materialized view is semantically analyzed to determine whether the materialized view is usable in evaluating...http://www.google.es/patents/US5897632?utm_source=gb-gplus-sharePatente US5897632 - Method and system for using materialized views to evaluate queries involving aggregation
Method and system for using materialized views to evaluate queries involving ...
