CHAPTER 12

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Partitioning: Divide and Conquer

Oracle provides two key scalability features that enable good performance, even with massively large databases: parallelism and partitioning. Parallelism allows Oracle to start more than one thread of execution to take advantage of multiple hardware resources. Partitioning allows subsets of a table or index to be managed independently (Oracle’s “divide and conquer” approach). The focus of this chapter is partitioning strategies.

Partitioning lets you create a logical table or index that consists of separate segments that can each be accessed and worked on by separate threads of execution. Each partition ...

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