performance tuning in oracle 11g

achieve flexible data rollback 155Practical case: Using Flashback database flexibly to achieve flexible data switching 1565.3 Data Guard Construction and application 1605.3.1 Common Data Guard Vulnerability 1615.3.2 11g Data Guard Build Practice 1635.3.3 on the design of Oracle Standby Library 1695.3.4 Practical First Snapshot standby features 171Practice case: Several data file issues in the database guar

Download the jdbc database driver package for Oracle. Pay attention to the version of the Oracle database. Here we use: OracleDatabase11gEnterpriseEditionRelease11.2. Download the jdbc Database driver package for Oracle. Pay attention to the version of the Oracle Database. Here we use:

1. Introduction to swingben Currently, open-source Oracle stress testing tools on the network are mainly orabm and swingbench. Because orabm does not support oracle 11g, this test uses swingben for stress testing. In addition, swingbench can also test rac. Swingbench is UK based oracle Database Solutions group develope

　　I. Oracle related statistical functions for IO informationThe Oracle I/O stack contains HBAs, which stores the relevant switches and stores the physical disks. Then Oracle recommends validating I/O to avoid problems when deploying applications. But before there was a very prickly problem, that was how to verify I/O side throughput, in other words, how to verify

This is my colleague to the company to do internal training ppt of the handout, for everyone to share. This is the training outline, PPT in Find place to upload, and so found will send the link here. Put it on the csdn for the time being, earn points download points: download.csdn.net/download/kingstarer/10655069 Cut a few ppt page you can preview it first Hello, everyone, welcome to participate in today's technology exchange, and today we are going to share with you is the

Use of Oracle SQL Performance Analyzer With SPA, you can play a specific SQL or the entire SQL load based on various types of changes (such as initialization parameter changes, optimizer statistics refreshing, and database upgrades), and then generate a comparison report, helps you evaluate their impact. In versions earlier than Oracle Database

Tags: RAC performance test RAC high availability testFrom the 11G onwards, the installation of RAC has become a physical work, but after the completion of RAC installation, how to ensure the stable operation of the system, how to get the performance of the system, this is the stability of the late-line system operation has a huge impact.The following is a summary

with each column. This allows you to reduce parsing time and reduce syntax errors caused by column ambiguity. Note: column ambiguity refers to the fact that because different tables in SQL have the same column name, the SQL parser cannot determine the attribution of this column when the column appears in the SQL statement. 2, the effect of the conditional order of the WHERE clause in Oracle on performance:

Operating Environment: AIX + 11g + PLSQL Includes the following content: 1. SQL statement execution process 2. optimizer and execution plan 3. Properly apply Hints 4. Indexes and Application Instances 5. Other optimization technologies and applications1. SQL statement execution process 1.1 SQL statement execution steps 1) analyze the syntax and analyze whether the syntax of the statement complies with the specifications, to measure the meaning of each

Buy Oracle Database Course package and enjoy 85 discount!!Package Address: http://edu.51cto.com/pack/view/id-807.htmlPerformance optimization for Oracle 11g R2 databaseDatabase performance problem is the most discussed topic in database field, because it involves database principle, IO storage, server

1,swingben Introduction The current open source Oracle Stress testing Tools on the Web are mainly ORABM and swingbench, and because ORABM does not support Oracle 11g versions, the test uses Swingben for stress testing. In addition, Swingbench can also test the RAC. Swingbench is an Oracle stress testing tool developed

Tags: memsql sqlfire newsql Performance1. Software versionMemsql 3.1Pivotal Sqlfire 1.1.2Oracle 11g XE2. Test environmentHomestay HostOs:windows 7 64-bit Professional Editioncpu:i7-3770 3.4GHzMemory: 16GHDD: Greater than 800GVMware virtual MachinesOs:centos 6.3 64-bitMemory: 16GWhere Memsql runs on virtual machines, Sqlfire and Oracle run directly on the hostSqlfire only open one server member3.DDLMemsqlDRO

Oracle performance optimization is sometimes so simple _ index Performance optimization is sometimes so simple I. Overview Recently, the CPU of a system (aix6.1 + Oracle10.2.0.5 RAC) reaches every five minutes. This system is a monitoring system and takes the number of all running systems every five minutes, in fact, this was the case a year ago. I only sent freq

Oracle Performance Analysis 1: Enabling SQL tracking and obtaining trace files When there is an issue with Oracle query efficiency, we often need to understand the problem so that we can provide a solution to the problem. Oracle provides the trace information for SQL Execution, including the text information of SQL sta

Oracle uses TRACE for SQL Performance Analysis If the SQL _trace parameter is set to true, the entire instance will be tracked, including all processes: User processes and background processes, which may cause serious performance problems and must be used with caution in the production environment. 1. perform trace operations based on related transactions or SQL:

It is often asked whether the conditional writing sequence of the Where clause in oracle has an impact on SQL Performance. My intuition is that if this order has an impact, Oracle should have been able to achieve automatic optimization for a long time, however, there has been no conclusive evidence in this regard. Articles found on the Internet generally think th

In the absence of visual tools to monitor database performance, common scripts come in handy, and here are a few scripts related to Oracle performance for your reference. The following scripts are passed in Oracle 10g testing and Oracle