Where is my Spfile&My db use Spfile or Pfile
How we can check Our Dbs is running with spfile or pfile. Here is the some method to can find your file locations etc. 1. By using SqlPlus, Let us check your db started via spfile or pfile $ sqlplus /...
View ArticleHow to install Oracle Trace File Analyzer (TFA)
In this post I will explain how We can install and use TFA. Oracle Trace File Analyzer (TFA) provides a number of diagnostic tools in a single bundle, making it easy to gather diagnostic information...
View ArticleHow to Relocate SCAN_LISTENER
I have 12.0.1.2 node RAC system on Linux 64 bit. I had some e-mails from our developer team about database connection problems. They got “ORA-12541: TNS:no listener” error message. I started to...
View Article“SYS”.”ORA$AT_SA_SPC_SY_ is failing
I faced with this error message on 18c RAC database. Error message is: ORA-12012: error on auto execute of job “SYS”.”ORA$AT_SA_SPC_SY_10909″ ORA-01422: exact fetch returns more than requested number...
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High CPU usage on EMON PROCESS
In Our RAC databases I noticed EMON process consuming CPU. OEM graph like below: So What is EMON process? From oracle doc: EMNC / Ennn ( EMON Coordinator Process / EMON Slave Process ) EMNC...
View Articleksh: /usr/bin/rm: arg list too long While deleting files on linux
You can face with this error message while you are deleting some xxx.trc -c-dump files or some other files which fill up your disk you may hit ksh: /usr/bin/rm: arg list too long error message, Let see...
View ArticleORA-01578 & ORA-01110 at alertlog
You can hit this error on your alert.log. Error could be similar as: ORA-01578: ORACLE data block corrupted (file # 12, block # 4207) ORA-01110: data file 11: ‘/xx/sytem.dbf’ There are many possible...
View ArticlePMON terminating with error 481
On my 11.2&2 node RAC system, one of the node has been rebooted. While I was investigating issue I noticed LMDO process terminating the instance. We have below in alert.log on victim node: LMS2...
View ArticleORA-29702: error occurred in Cluster Group Service operation
I faced with that error on r12.1.3 EBS system. My db version is 11.2&2 node RAC system. My first node is goes down by below errors: opiodr aborting process unknown ospid (11075852) as a result of...
View ArticleORA-19606 during Rman backup
I faced with ORA-19606 error on 11.2.0.4 database. I am using below rman script to take full backup for my database. Here is my script: rman target / run { ALLOCATE CHANNEL C1 device type ‘sbt_tape’ ;...
View Articleex: 0602-101 Out of memory saving lines for undo.
While you are trying to open alert_SID.log file or some other large files with vi editor you may hit ex: 0602-101 Out of memory saving lines for undo error message, # cd...
View ArticleImport from full export through ORA-39002 & ORA-39166 errors
As a DBA, We are using export/import utility many times during our daily process. I have face this error trying to import only one table from full export. Error message is ORA-39002: invalid operation...
View ArticleORA-29538 Java not installed with ORA-06512
Some of our developers run their code on Our 11.2.0.4 database. While they are running the code, they are hitting ORA-29538&ORA-06512 errors. Here is the complete error messages: ORA-29538:Java...
View ArticleArchival Error Received logging on to the standby
I got email from our OEM such as ” PROD EM Event: Critical:XXXDG – The database status is UNKNOWN.” This standby db is belong to of our 11.2.0.4 RAC database which is running on AIX 7.1. While I...
View ArticleWhat is COE.sql and How We can set Execution plan for any sql
Most of us face with similar issue on our SQL which are running on our databases. Sometimes some SQL could choose different plan and performance goes to worst. Normally with correct plan SQL took 5...
View ArticleGetting ORA-39726 error on compressed tables
I face with that error message while I tried to drop column on my compressed tables which in exists in my Exadata. Bad news is, there is no solution in 10g release. But there are some workaround...
View ArticleWhat is Block Corruption&How We can Solve Block Corruption
In daily IT process, There are many possible causes of a block corruption including: – Bad IO hardware / firmware– OS problems– Oracle problems– Recovering through “UNRECOVERABLE” or “NOLOGGING”...
View ArticleWhat happen When You run Update in database
It is easy for all to make 1 row update or 1000 row update in database. Kust write code than wait some second and finally get xxx row updated. It seems very easy right? But Let us see what happen when...
View ArticleIn Grid Infrastructure How We Can Change IP
Yo may need to change your existing IP or hostname after installation for your setup In this case I need to change my current IP to another on my standalone GI. Operation System –> AIX 7.1Oracle GI...
View ArticleList Rman Backup Details
In my previous post I shared some command which are related to get information RMAN backups. You can find this post in this link In this post I try to give more details and examples for to get...
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