Original Post can be viewed at 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 it cannot copy  jobs which have  arguments. Need to copy jobs can arise due to following scenarios 1)Runaway jobs – When Scheduler job is running without any SID. This means OS session is not present and this will not [...]

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Original Post can be viewed at 11g: Multiple failed login attempt can block New Application connections

In Oracle database 11g, a new feature/enhancement has potential of bringing down the application due to multiple sessions hitting database with wrong password. As per Bug 7715339 – Logon failures causes “row cache lock” waits – Allow disable of logon delay [ID 7715339.8] In 11g there is an intentional delay between allowing failed logon attempts [...]

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Original Post can be viewed at V$SQL_SHARED_CURSOR in 11.2.0.2

Oracle 11.2.0.2 has introduced new column “REASON” to V$SQL_SHARED_CURSORS. I came across this extremely useful column while debugging multiple child cursor issue (11.2.0.2 seems to have too many bugs which can cause multiple child cursors). As per documentation , REASON column has been introduced in 11.2.0.2 REASON - CLOB Child number, id, and reason the [...]

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Original Post can be viewed at BUG:10082277: Database Connections failing with ORA-4031

A short write-up on a problem faced in few newly upgraded databases to 11.2.0.1 : I faced this issue in couple of databases which were recently upgraded to 11gR2, the problem is so severe that even connecting using “/ as sysdba”  is not working and erroring out with <span style="font-family: arial,helvetica,sans-serif; font-size: small;">ORA-04031: unable to [...]

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Original Post can be viewed at BUG: Creating 11gR2 RAC Using VMware On Toshiba Laptop

I was setting up 11gR2 RAC grid infra on my new Toshiba L745 series laptop on OEL5.4, the installation was going very smoothly but suddenly the VMWare machines crashed while performing remote operations on second node with following message: <span style="font-family: arial,helvetica,sans-serif;">"vmxaiomgr.retrycontabort" Please disconnect and reconnect if the storage is external to comupter</span> The next [...]

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Original Post can be viewed at 10.2 CRS startup issue

Today I faced a strange issue with CRS  post host reboot. CRS was not coming up and we could see following message in $ORA_CRS_HOME/log/<hostname>/client/clsc*.log cat clsc26.log Oracle Database 10g CRS Release 10.2.0.4.0 Production Copyright 1996, 2008 Oracle. All rights reserved. 2011-07-01 21:00:14.345: [ COMMCRS][2541577376]clsc_connect: (0x6945e0) no listener at (ADDRESS=(PROTOCOL=IPC)(KEY=CRSD_UI_SOCKET)) 2011-07-01 21:00:14.345: [ COMMCRS][2541577376]clsc_connect: (0x695020) no [...]

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Original Post can be viewed at ORA-00132 while starting 11gR2 database

Short post on a error which can take lot of time to debug. You have upgraded a database and after restoring all files (init,tnsnames) try to startup 11g database and it fails with following error SQL> startup nomount ORA-00119: invalid specification for system parameter REMOTE_LISTENER ORA-00132: syntax error or unresolved network name 'scan-clu:1521' 11gR2 requires [...]

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Original Post can be viewed at Retrieving Database SID,Port information from Grid Control repository

This is short posting on sql which can be used to get Hotsname,SID,Port information for databases registered in Grid Control repository. This information can be  used to create a tns entries and we can further use it to run a sql on all these databases. set pages 999 lines 200 col host for a50 col [...]

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Original Post can be viewed at ORA-01722 with Full Table Scan

My application developers approached me with an issue which is very unique to me. They were complaining about a query which was failing with ORA-01722 “invalid number” after an upgrade to 11.1.0.7 from 10.2.0.4. The syntax of the query is like: select max(a) from t1 where c1<>'abc' and c2=12345 and c3='Y' and c4='xyz'; This query [...]

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Original Post can be viewed at Renaming Diskgroup containing Voting Disk and OCR

Recently encountered a issue where we had to rename a diskgroup for 11.2 RAC containing OCR and Voting Disk.At this moment we had not created database . I had done similar activity on 11.2 Single instance having database files (see this post) using renamedg. Therefore we tried using same approach to do this activity. Pre-requisite [...]

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Original Post can be viewed at Physical Corruption: ORA-1578 part 3

Recently we encountered a block corruption issue in 10g database on Linux x86 64 bit and using ASM for storing database files. Saurabh had earlier written articles on ora-1578. http://askdba.org/weblog/2008/04/physical-corruption-ora-1578-part-1/ http://askdba.org/weblog/2008/05/physical-corruption-ora-1578-part-2/ It was first time I was working on a corruption issue, so I followed above notes and found them quite useful. Good thing about [...]

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Original Post can be viewed at DBMS_SCHEDULER jobs not running?

I came across this posting on OTN which lists down things to check in case your scheduler job is not . This is quite old and many of you would have already seen it. But for others and also for my future reference I am mentioning it here http://forums.oracle.com/forums/thread.jspa?threadID=646581 Related PostsCopying Oracle Scheduler jobs with [...]

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Original Post can be viewed at Downloading Oracle Software directly to Server

This article is based on Pythian’s aricle DOWNLOADING FROM OTN DIRECTLY TO YOUR DATABASE SERVER. Article tell’s about using lynx (text based web browser available on linux) to generate the cookies file which can be then used with wget to download software. But when I tried to use lynx , it repeatedly gave error for [...]

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Original Post can be viewed at 11gR2: Steps to Rename ASM Diskgroup with DB files

11gR2 introduced renamedg utility to rename diskgroups. I would discuss renaming a diskgroup on a Standalone Grid Infrastructure installation with Oracle Restart. Before you use the command, ensure that ASM diskgroup is dismounted. Below is syntax for the command. You can refer to 11gR2 docs for details renamedg [phase={ one|two |both } ] dgname=diskgroup newdgname=newdiskgroup [config=configfile] [...]

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Original Post can be viewed at ORA-27146 Errors while starting up Database

Short post on a issue faced by me, while starting up a cloned database SQL> startup nomount ORA-24323: value not allowed ORA-27146: post/wait initialization failed This database environment was cloned and was being started for first time after cloning. Running hcve scripts on system indicated that OS kernel parameters were adequately sized. SHMMNI set to [...]

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Original Post can be viewed at Don’t blindly implement Blog suggestions on your Production Servers

Don’t blindly implement Blog suggestions on your Production Servers. This post is prompted by a recent issue where in DBA had modified racgvip script based on suggestion on one of blog (won’t name it).  Any such suggestions or similar to these which involve modification of oracle provided scripts should always be verified with Oracle Support. [...]

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Original Post can be viewed at Oracle Patch Set update (PSU 2) released for 10.2.0.4 and 11.1.0.7

Oracle has recently released Oracle Patch Set update (PSU 2) along with CPU October 2009. As informed earlier , PSU are released quarterly along with CPU patches. If you are running 10.2.0.4 RAC database, you need to apply following patches 1) Apply Patch 8833280 (10.2.0.4.2 PSU 2) on Oracle Database 10.2.0.4 2) Apply Patch 8436582 [...]

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Original Post can be viewed at Using Oracle Wallet to Execute Shell script/cron without hard coded Oracle database password

You have been asked to schedule a shell script which need to connect to a  particular user and perform some action? How do you pass the password to script without hardcoding it in script. If password is written in a script, isn’t it a security threat? Well with 10gR2 , Oracle Wallet provides you with [...]

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Original Post can be viewed at 11gR2 Database Installation with ASM on OEL5

I will be listing down steps for 11g Release 2 installation on Linux x86. There has been few changes incorporated in 11gR2 which must be given due consideration before starting installation. ASM instance now runs from new Oracle Home called Grid Infrastructure. If you wish to use ASM for storing database files, then you should [...]

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Original Post can be viewed at 11gR2:What if Oracle gives you Kernel parameter fixup script

11gR2 database installation comes up with new  feature known as Installation Fixup scripts which aids you during Installation phase.  If a pre-requisite check fails, then it provides a click and generate fixup script option and then points you to script location which then need’s to be executed  with root permission. As per doc’s , it [...]

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