August 2013
Intermediate to advanced
1472 pages
38h
English

To improve the performance of an application, you can make local copies of remote tables that use distributed data or create summary tables based on GROUP BY operations. Oracle provides materialized views to store copies of data or aggregations. Materialized views can be used to replicate all or part of a single table or to replicate the result of a query against multiple tables; the database can automatically refresh the replicated data at time intervals that you specify. In this chapter, you will learn about the general usage of materia44lized views, including their refresh strategies; this is followed by a ...
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