Writing About Our Experiences With Oracle Databases
Friday May 18th 2012

Latest Topics

Using current_scn for RMAN incremental ? Think again..

I am bloging about experience we had using rman incremental backup for syncing standby database. We had a standby [Read More]

Poll on Sql Plan Management

Dominic is conducting poll on SPM and Sql Profiles usage on his website. Link can be found here  I have been using SPM [Read More]

Oracle Direct connector for HDFS

Some time back oracle had announced Oracle Big Data appliance. Along with this Oracle released Big Data Connectors to [Read More]

ORA-7445 core dump [kokscold()+849] from EM 12c

The first problem reported by my EM 12c is an ORA-7445 error. After checking the alert log following is the exact [Read More]

Copying Oracle Scheduler jobs with Arguments

Oracle provides dbms_scheduler.copy_job function to copy oracle scheduler jobs which works great. But problem is that [Read More]

Useful Metalink Articles


Oracle Documentation

11g - http://www.oracle.com/pls/db112/homepage

10g - http://www.oracle.com/pls/db102/homepage

9i - http://www.oracle.com/pls/db92/db92.homepage

10G Database Limits- http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14237/limits.htm#REFRN004

 

Architecture

Note 153961.1 – Semaphores and Shared Memory – An Overview

Note.412264.1- How to Backup Partition of Range Partitioned Table with Local Indexes

Note 263599.1 – Understanding and Troubleshooting Instance Load Balancing

 

 

Administration

Note 262066.1 – How To Size UNDO Tablespace For Automatic Undo Management

Note 268870.1 – How to Shrink the datafile of Undo Tablespace

Note 206007.1 – How To Automate Cleanup Of Dead Connections And INACTIVE

Note 1029252.6 – How to Resize a Datafile

Note 199298.1 – Diagnosing excessive redo generation

 

 

 

Automatic Storage Management (ASM)

Note 359266.1 – FAQ ASMLIB CONFIGURE,VERIFY, TROUBLESHOOT

Note 266028.1 – ASM Using Files Instead of Real Devices on Linux

Note.443835.1- ASM Fast Mirror Resync – Example To Simulate Transient Disk Failure And Restore Disk

Note.438580.1 – How To Move The Database To Different Diskgroup (Change Diskgroup Redundancy)

Note.445037.1 – ASM Fast Rebalance

Note.429098.1- 11g ASM New Feature

Note.451900.1 – ASMCMD – New commands in 11g

Note.431143.1 – ‘WARNING- allocation failure on disk ‘ Messages In Asm Alert Log

Note.419014.1 – ORA-15041 V$ASM_DISK Shows HUNG State for Dropped Disks

NOTE.345180.1 – How to duplicate a controlfile when ASM is involved

 

 

 

Globalization Support

Note 158577.1 – NLS_LANG explained

Note 179133.1 – Windows NLS_LANG

Unix NLS_LANG – Metalink doc: 264157.1

Note 340512.1 – Timestamps and time zones – Frequently Asked Questions

Note 227338.1- Character Set Scanner – Frequently Asked Questions

Note 119164.1 – Changing Database Character Set – Valid Superset Definitions

Note 226692.1- Finding out your NLS Setup

Note 264157.1- The correct NLS_LANG setting in Unix Environments

Note 227338.1 – Character Set Scanner – Frequently Asked Questions

 

 

 

Internal Error – ORA-600/ORA -7445

Note 403747.1 – FAQ Physical Corruption

Note: 260459.1 – How to Analyze Problems Related to Internal Errors (ORA-600) and Core Dumps (ORA-7445) using Metalink

 

 

Performance

Note 41634.1 – Tkprof Simplistic Overview

Note 46234.1- Interpreting Explain planNote 22908.1 – What are Latches and What Causes Latch Contention

NOTE.228913.1- Systemwide Tuning using STATSPACK Reports

NOTE.164504.1- How to Check Why Shutdown Immediate Hangs?

Note 375935.1 – What To Do and Not To Do When ‘shutdown immediate’ Hangs

NOTE.35934.1- Cost Based Optimizer – Common Misconceptions and Issues

Note 62365.1 – What to do with “ORA-60 Deadlock Detected” Errors

Note 203238.1- Using Parallel Execution

Note 377847.1- Unsafe Peeked Bind Variables and Histograms

Note 462072.1- File System’s Buffer Cache versus Direct I/O

Note 147468.1 – Checkpoint Tuning and Troubleshooting Guide

Myths and Folklore About Oracle 8i Performance Tuning

Note.458881.1 -Killed Session Hung Consuming 100% CPU

Note.468740.1 – “Pmon Failed To Acquire Latch” Messages in Alert Log -Database Hung

Note.430555.1 – Database Hung With “kksfbc child completion” and “Cursor- Pin X” Waits

NOTE.215858.1- Interpreting HANGANALYZE trace files to diagnose hanging

Upgrading from Oracle Database 9i to 10g: What to expect from the Optimizer

 

 

Memory

Note 396940.1- FAQ: ORA-4031

Note.443746.1- Automatic Memory Management(AMM) on 11g

Note 223730.1- Automatic PGA Memory Managment in 9i

 

 

 

RAC

Note 220970.1- RAC: Frequently Asked Questions

Note 374540.1 - Quick Guide: How To Set Up Load Balancing

Note 244241.1 – Rolling Patch – OPatch Support for RAC

 

 

 

Unix

Note 262004.1 – Configuring RHEL 3 and Oracle 9iR2 32-bit with Hugetlb

Note 260152.1 – Summary About the Large SGA & Address Space on RH Linux

Note 226209.1 – Linux: How to Check Current Shared Memory, Semaphore Values

Note 37914.1 – Raw Devices and Oracle – 20 Common Questions and Answers

Note 110888.1 – How to Trace Unix System Calls

Note 293561.1 – Unix Commands on Different OS’s

Note 18089.1 – UNIX: Connect AS SYSBDA / SYSOPER Privilege on Oracle RDBMS

 

 

 

Miscellaneous

White Paper on Space Mgmt

http://www.oracle.com/technology/products/manageability/database/pdf/OOW2002SpaceMgmtEXT.pdf

Note 291686.1 – White Paper on Logminer

Note 157250.1:Freelist Management with Oracle 8i

Note 291686.1 – LogMiner Utility Release 8.1.x – 10g

Note 161549.1 – Oracle Database Server and Networking Patches for Microsoft Platforms

 

 

 

Security

Note 1020945.6 – How to Setup Auditing

Note 70679.1 – How to Audit Logon/Logoff Events with Triggers

Note 222807.1 -How To Audit GRANT ANY PRIVILEGE Or GRANT ANY ROLE

Note 340240.1 – “An Assessment of the Oracle Password Hashing Algorithm”

 

 

 

Upgrade

Note 316889.1 – Complete Checklist for Manual Upgrades to 10gR2

 

Documents

 

11gR1/R2 Installation and Upgrade steps by Suhas D. 11gR2_Upgrade_Steps

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Recent Comments

Amit had this to say

hi Bhushan, Em should be pretty easy. I will try to do it in my test setup and document it. cheers Amit Read the post

bhushan had this to say

Hey Amit, Any Document to Setup the Dataguard using EM12C? Any tips any suggestion? Regards Bhushan Read the post

Amit had this to say

By default window is created with LOW prioirty. If there are two overlapping windows with low and high priority. High Read the post

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