© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022
D. Kuhn, T. KyteExpert Oracle Database Architecturehttps://doi.org/10.1007/978-1-4842-7499-6_5

5. Oracle Processes

Darl Kuhn1   and Thomas Kyte2
(1)
Morrison, CO, USA
(2)
Denver, CO, USA
 
We’ve reached the last piece of the architecture puzzle. We’ve investigated the database and the set of physical files that constitute a database. In covering the memory used by Oracle, we’ve looked at one-half of an instance. The last remaining architectural issue to cover is the set of processes that constitute the other half of the instance. Each process in Oracle will perform a particular task or set of tasks, and each will have internal memory (PGA memory) allocated by it ...

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