September 2002
Intermediate to advanced
1024 pages
30h 52m
English
Content preview from Oracle PL/SQL Programming, Third EditionBecome 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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Hardware for PL/SQL: Bigger = Better?
Let’s close out this chapter with a few observations about server hardware and its effect on PL/SQL performance. Typically, database server hardware is one of the following:
A single-processor computer
A symmetric multiprocessor (SMP) computer
A “clustered” computer
Oracle, like any software that runs on SMP or clustered machines, won’t automatically benefit from extra processors. Only when the software is carefully crafted to delegate computing tasks to different CPUs will those extra processors pay off. The smart programmers at Oracle have done a lot of work to enable the server to exploit multiprocessing hardware.
Not all Oracle editions have this capability, though. To take advantage of SMP hardware, you must be using either the Enterprise edition or the Personal edition of Oracle. The one exception to this rule has to do with bulk data loads; all editions of Oracle are capable of parallelizing loads on SMP machines. To take advantage of clustered computers, you must not only be running Oracle’s Enterprise edition, you must also license an extra option called Real Application Clusters (RAC) in Oracle9i, or Oracle Parallel Server (OPS) prior to that.
But will the extra expense translate into better PL/SQL performance? Let’s look at the three major processor families.
The Single-Processor Variation
If you’re a lone developer running Oracle on a desktop machine, you’re probably running Oracle on a single-processor computer. In this configuration, ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.