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This article explores the internals of materialized views and demonstrates how to precompute complex aggregates—having Oracle dynamically rewrite SQL to reference precomputed aggregate information.
Once materialized views have been enabled, Oracle provides several methods for invoking query rewrite. Query rewrite is generally automatic, but you can explicitly enable it by using Isession ...
The solution is to use SQL views, materialized views, or create a new table that contains only the filtered data the user needs.
Materialised view selection is a critical process in data warehousing that significantly enhances the performance of online analytical processing systems. This process involves the pre-computation ...
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