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oracle performance tuning

oracle performance tuning summary

oracle performance tuning性能优化学习系列(三)

oracle性能优化学习系列(三) 自动化收集性能统计信息Automatic Performance Statistics1,统计信息存储在v$sysstat and v$sesstat2,重启库后，统计信息会重置3，awr会...

oracle performance tunning

经典的调优指南，考虑到了整个库的方方面面。目录：SGA数据库配置和IO问题优化排序操作诊断latch竞争Rollback(undo) Segment 优化Lock Contention应用优化提升block的效率SQL优化操作系...

oracle performance tuning性能优化学习系列(四)

CPU Statistics1,获取整个系统的cpu使用情况2,获取多处理器环境的每个独立cpu的使用情况3,大多os关于cpu usage用时在user space or mode and kernel space or mo...

高清彩版 oracle sql performance tuning and optimization

高清彩版 Oracle SQL Performance Tuning and Optimization: It's all about the Cardinalities

Oracle Database 12c Performance Tuning Recipes

Oracle Database 12c Performance Tuning Recipes is a ready reference for database administrators in need of immediate help with performance issues relating to Oracle Database. The book takes an example-based approach, wherein each chapter covers a specific problem domain. Within each chapter are "recipes," showing by example how to perform common tasks in that chapter's domain. Solutions in the recipes are backed by clear explanations of background and theory from the author team. Whatever the task, if it's performance-related, you'll probably find a recipe and a solution in this book.

oracle9 performance tuning

Oracle9i Database Performance Tuning Guide and Reference is an aid for people<br>responsible for the operation, maintenance, and performance of Oracle. This book<br>describes detailed ways to enhance Oracle performance by writing and tuning SQL<br>properly, using performance tools, and optimizing instance performance. It also<br>explains how to create an initial database for good performance and includes<br>performance-related reference information.<br>This book could be useful for database administrators, application designers, and<br>programmers. Readers should be familiar with Oracle9i, Oracle9i Database<br>Performance Planning, the operating system, and application design before reading<br>this manual.

Oracle 11gR2 Performance Tuning 性能优化 参考手册

Oracle 11gR2 Performance Tuning 性能优化 参考手册

oracle performance tuning性能优化学习系列(五)

oracle性能优化学习系列（五）awr概述1，如配置statistics_level=typical or all，自动启用awr2,如配置为basic,使用dbms_workload_repository手工收集；但可能收集...

oracle performance tuning性能优化学习系列(二)

oracle性能优化学习系列(二)处理突发性能故障的方法1,仔细调查性能问题，并收集相关的统计信息；包含：　　a,了解用户的反馈信息，吞吐量和响应时间；　　　 自上次系统良好运行以来到底发生了什么变化，可以收集一些性能统计，比如...

Oracle Performance Tuning (一)

Oracle Performance Tuning —— 我的学习理解过程 1. Gathering Database Statistics Using the Automatic Workload Repository Gathering database statistics using the AWR is enabled by default and is con...

Steps for Oracle Performance Tuning

http://www.dba-oracle.com/t_steps_for_oracle_performance_tuning.htm Question:I am new to Oracle tuning, and I want to know the steps for Oracle performance tuning. Answer:As of Oracle 11g, Oracl...

ORACLE SQL Performance Tuning

Oracle Database上的设置对Performance的影响很大，如Shared Pool Size、Buffer Cache Size、SGA Structures、Database I/O Configuration、Rollback Segments等等，这些是DBA要更据实际状况取Tunning的部分，我们暂不详细讨论，DBA可对这块进行补充； 这份文档我们将重点放在影响SQL执

oracle.Performance.Tuning笔记

oracle.Performance.Tuning笔记 第二章 The Method Behind the Madness 当出...

Oracle performance tuning

db block get+consistent gets = logical read   consistent gets＝一致性读的block的个数，简单理解就是select访问的block个数 db block gets＝简单理解，就是update、insert、delete访问的block个数   logical I/O 与 physical I/O 的区别： 1）logica...

SQL Server Performance 分析

对网络上的一篇博客做下笔记，适当扩展下对 Performance 各个涉及到的要素。这篇文章讲的是分析性能，老外写的： How to analyse SQL Server performance 主要的要点有这些： · How does SQL Server work · Wait Info for currently executing requests · Aggregated wa

Oracle Performance Tuning

There are several relatively easy steps you can take to improve performance. From the users perspective, one of the most frequently used interfaces wit

oracle影响性能,Oracle性能调整与优化（一）

【51CTO.com快译】Oracle性能调整是一个范围比较广且有点复杂的主题，普通DBA面对的最大的问题是从哪里开始以及该做些什么。你知道的所有信息可能是有人(一个用户)报告了一个关于应用程序或查询性能下降的问题，当你面对这样的问题时该从何下手呢?Oracle的调整方法对那些已经取得了Oracle 8i性能调整认证考试的人而言，有一个试验区域实验Oracle的调整方法，当Oracle 9i发布时...