July 2017
Intermediate to advanced
896 pages
23h 12m
English
Content preview from Oracle Internals
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Chapter 43
Managing Multiple Buffer Pools in Oracle8
Michael R. Ault
The buffer cache is the area in memory where data is stored from data tables, indexes, rollback segments, clusters, and sequences. No data can get to users from a disk unless it goes through the Oracle db block buffers (except for special types of sorts). By ensuring that enough buffers are available for transient storage of these data items, execution can be expedited by reducing required disk reads.
Oracle7 and early Oracle8 releases had only the “normal” buffer area to worry with. Now, Oracle8i has added the capability to subdivide this buffer area into KEEP and RECYCLE buffer areas. Later we examine how these areas interact and how they should be tuned and sized.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.