January 2002
Intermediate to advanced
108 pages
2h 7m
English
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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.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.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.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.
Chapter 1. Oracle SQL TuningPocket Reference
Introduction
This book is a quick-reference guide for tuning Oracle SQL. This is not a comprehensive Oracle tuning book.
The purpose of this book is to give you some light reading material on my “real world” tuning experiences and those of my company, Mark Gurry & Associates. We tune many large Oracle sites. Many of those sites, such as banks, large financial institutions, stock exchanges, and electricity markets, are incredibly sensitive to poor performance.
With more and more emphasis being placed on 24/7 operation, the pressure to make SQL perform in production becomes even more critical. When a new SQL statement is introduced, we have to be absolutely sure that it is going to perform. When a new index is added, we have to be certain that it will not be used inappropriately by existing SQL statements. This book addresses these issues.
Many sites are now utilizing third-party packages such as Peoplesoft, SAP, Oracle Applications, Siebel, Keystone, and others. Tuning SQL for these applications must be done without placing hints on SQL statements, because you are unauthorized to touch the application code. Obviously, for similar reasons, you can’t rewrite the SQL. But don’t lose heart; there are many tips and tricks in this reference that will assist you when tuning packaged software.
This book portrays the message, and my firm belief, that there is always a way of improving your performance to make it acceptable to your users.
Acknowledgments ...
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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.