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This ebook is an anthology of powerful database administration strategies representing the collective knowledge of the OakTable community. With an emphasis upon performance―but additionally branching into safeguard, nationwide language, and different issues―the booklet is helping you bring the main price to your company’s funding in Oracle Database applied sciences. You’ll learn how to successfully plan for and visual display unit functionality, to troubleshoot systematically while issues get it wrong, and to regulate your database instead of letting it deal with you.
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A typical example of old guidelines (that is, best practices) is keeping checkpoint frequency low or using raw devices to get the best possible performance. The life-span of best practices is generally longer than their applicability time-frame. Inertia is part of human nature. com is a web site I’ve created for everyone in the community to unite and stand against guess-based troubleshooting. You’ll find stories, articles, and even the occasional video to help you in your efforts to take a rigorous and scientific approach to problem-solving.
For some time, this DBA kept asking developers to reduce parsing more and more as CPU utilization was going through the roof. It took a while for him to realize that he’d fallen into the trap of his past experience. We should use our experience to aid in scientific troubleshooting. We should never rely on ready-made solutions from past experience, but we can use that experience to take some shortcuts and save time and effort in analysis phase of a new problem. Our experience should help us narrow down the search for the root cause.
For the rest of you, be very careful with the strategy of buying time. It might backfire—I warned you! Efficiency vs. Effectiveness One good strategy to fight a demand for immediate action is to distinguish between efficiency and effectiveness. Efficiency is all about the process; it means to act so that you save time, money, and effort. Effectiveness is all about the result—how well the job gets done, and the quality of the output. 4 CHAPTER1 ■ BATTLE AGAINST ANY GUESS While a production engineer always needs to find the balance between both, it’s often that effectiveness does prevail, and that efficiency becomes a secondary target.