ORADEBUG How To
What is ORADEBUG:ORADEBUG is a debugger tool, can be used for (tracing any session, dump DB memory structure, suspend/resume a session and the most useful use is to analyze the hang when an instance is...
View ArticleAbout DEFAULT ROLES
There was a conversation between me and an auditor:Auditor: What is the default role for the database?Me: What do you mean by default role for the database? !!!!!!!!!!!Auditor: We found this...
View ArticleGathering Fixed Objects Statistics
What are the fixed objects:Fixed objects are the x$ tables and their indexes.Why we must gather statistics on fixed objects:If the statistics are not gathered on fixed objects, the Optimizer will use...
View ArticleHiding table Data from unauthorized Users
In this scenario I'll explain how to hide data on a table from unauthorized users even if these unauthorizes users have DBA privilege.After hiding the data from unauthorized users whenever they try to...
View ArticleHow To Calculate Your Network Bandwidth Speed
There is a great software called IPERF you can easily use it for testing the network bandwidth speed.Why IPERF is a great software to test bandwidth speed:Testing you network speed by copying a file...
View ArticleEasy Way to Configure VNC Server On Linux
Make sure that VNCserver package is already installed:# rpm -qa | grep vnc-servervnc-server-4.1.2-14.el5_6.6If not installed:Download the latest version of VNC server from this...
View ArticleAll About Statistics In Oracle
In this post I'll try to summarize all sorts of statistics in Oracle, I strongly recommend reading the full article, as it contains information you may find it valuable in understanding Oracle...
View ArticleUpgrade from 11.2.0.1 to 11.2.0.3 (Part I Software Installation)
Part I : environment preparation & 11.2.0.3 Software Installation (Standalone DB)In this part I'll discuss OUT-PLACE installation steps of Oracle 11.2.0.3 (standalone DB) on a Linux server already...
View ArticleUpgrade from 11.2.0.1 to 11.2.0.3 (Part II Database Upgrade)
Part II : Database Upgrade steps from 11.2.0.1 to 11.2.0.3 (Standalone DB)In this part I'll discuss database upgrade steps from 11.2.0.1 to 11.2.0.3, I already covered 11.2.0.3 database software...
View ArticleThe difference between granting direct privileges to a user and granting same...
>When granting a role to a user the user have to re-login to get use of that role.>When granting a privilege to a user the user can use it immediately. NO need to re-login.>Roles doesn't give...
View ArticleUpgrade RAC 11.2.0.1 to 11.2.0.3 (Part I Software Installation)
In this post I'll discuss full implementation of upgrading Oracle RAC 11.2.0.1 to 11.2.0.3, the new RAC 11.2.0.3 will be installed on a new hardware (outplace upgrade).This lengthy post (in order to...
View ArticleUpgrade from RAC 11.2.0.1 to 11.2.0.3 (Part II OS preparation, Grid...
In Part I I've installed the Linux OS and prepared the shared filesystem (ISCSI configuration & OCFS2)In this part I'll prepare the Linux OS for the RAC installation, install Grid Infrastructure...
View ArticleUpgrade from RAC 11.2.0.1 to 11.2.0.3 (Part III Create Standby database being...
In Part I I've installed the Linux OS and prepared the shared filesystem (ISCSI configuration & OCFS2) In Part II I've prepared the Linux OS for the RAC installation, installed 11.2.0.3 Grid...
View ArticleUpgrade RAC 11.2.0.1 to 11.2.0.3 (Part IV RAC Database Upgrade from 11.2.0.1...
In Part I I've installed the Linux OS and prepared the shared filesystem (ISCSI configuration & OCFS2) In Part II I've prepared the Linux OS for the RAC installation, installed 11.2.0.3 Grid...
View ArticleIntroduction To a Great Tool: RAC Configuration Audit Tool (RAC & DB Health...
RAC Configuration Audit Tool This tool is a script provided by Oracle to help you perform a Health Check on your Database environment (specially RAC environments), it also checks the implementation of...
View ArticleDatabase | Filesystem | CPU Monitoring Script
I would like to share with you today the dbalarm.sh script. This script monitors FILESYSTEM usage, CPU overhead and report ORA- errors and TNS- errors on ALL databases & Listeners ALERTLOGs on the...
View ArticleCOLD BACKUP Script (For Oracle Database)
Today I'll share with a script can take a cold backup of your oracle database on Linux and Unix environments.The script is downloadable from this...
View ArticleOracle Logs CLEANUP Script
In this post I'll share with you one of my scripts I'm using to backup and cleanup Oracle logs associated with a specific database on the Oracle server.This script has been tested on Linux & SUN...
View ArticleScript to TRACE Oracle Session
I'm sharing with you today two shell scripts will help you easily trace an Oracle session and get a readable output trace file.The first script start_tracing.sh will let you identify the session you...
View ArticleExtract Oracle Audit Records Script
Today I'll share with you one of my scripts I'm using to easily retrieve the audit records of an oracle database user.Note: Auditing should be enabled on the database or the script will return no rows....
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