TAILIEUCHUNG - 8 Monitoring and Managing Memory

After completing this lesson, you should be able to: • Describe the memory components in the SGA • Implement Automatic Shared Memory Management • Manually configure SGA parameters • Configure automatic PGA memory management | Monitoring and Managing Memory Objectives After completing this lesson, you should be able to: Describe the memory components in the SGA Implement Automatic Shared Memory Management Manually configure SGA parameters Configure automatic PGA memory management Memory Management: Overview DBAs must consider memory management to be a crucial part of their job because: There is a finite amount of memory available Allocating more memory to serve certain types of functions can improve overall performance Automatically tuned memory allocation is often the appropriate configuration, but specific environments or even short-term conditions may require further attention Memory Management: Overview Because there is a finite amount of memory available on a database server and thus, on an Oracle database instance, you must pay attention to how memory is allocated. If too much memory is allowed to be used by a particular area that does not need it, then there is the possibility that there are other .

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