September 2010
Intermediate to advanced
839 pages
24h 33m
English
Content preview from Pro Oracle Database 11g RAC on LinuxBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 14. Parallel Execution
Parallel Execution is a feature of the Oracle Database that enables the division of certain database operations into multiple subtasks that operate simultaneously. The goal of this approach is to complete these tasks more quickly than if they were executed serially as a single task. Parallel Execution has the potential to improve performance and response times by harnessing more of a system's hardware resources (see Chapter 4 for more information on hardware resources) to complete the task at hand. Parallel Execution enables singe-instance environments by utilize more of a system's CPU cores, memory, and I/O in a single operation. However, Parallel Execution is particularly relevant to RAC because it enables operations ...
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