ORA-00600: internal error code, arguments: [pesldl03_MMap: errno 1 errmsg...
Issue:ORA-39014: One or more workers have prematurely exited.ORA-39029: worker 1 with process name "DW00" prematurely terminatedORA-31671: Worker process DW00 had an unhandled exception.ORA-00600:...
View ArticleAIX paging issue
Issue: High paging on AIX oracle DB serverBackground/Observation: i. AIX server with version 6.1 TL 7 (6100-07-06-1241) running standalone Oracle DB 10.2.0.5 ii....
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Steps to create active data guard in 11g and up-gradation to 12c using manual...
Steps to Create 11 ADG and up-gradation to 12c using manual method 10 steps will take you through systematic approach to create standby database/ADG (active data guard) followed by activation and...
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What is Oracle Database ? Part I
12345678»An Oracle Database is a Relational Database management System used to store & retrieve the related information.An Oracle Database server/instance consists of shared memory structure,...
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What is oracle database ? Part II
«12345678»Will walk through the SGA memory components in detail below1. Database BufferDatabase buffer plays significant role in SGA by keeping blocks/granules read from datafile & allowing user...
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What is oracle database ? Part III
«12345678» 3. Large PoolLarge pool was brought in to optimize shared pool by isolating heavy IO servers operation like Backup/restoration using parameter LARGE_POOL_SIZE.Large Pool allocates memory...
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What is oracle database ? Part IV
«12345678»Background Processes: 1. PMON 2. SMON 3. DBWn 4. LGWR 5. CKPT 6. ARCn 7. RECO 8. RVWR 9. MMON 10. MMNL 11. MMAN 12. CJQn 1....
View ArticleWhat is oracle database ? Part V
«12345678» 6. ARCnARCn is background process spawn in ARCHIVELOG DB mode, where n ranges from 0-9ARCn copies online redo log files to a designated storage device after- A log switch has occurred-...
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What is oracle database ? Part VI
«12345678»DB Files: 1. Parameter 2. Password 3. tnsnames 4. Listener 5. Sqlnet 6. Control file 7. Data files 8. Temp file 9. Online Redo Log File10. Archive Log 1....
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What is oracle database ? Part VII
«12345678» 2. PasswordIf the DBA wants to startup a stopped oracle instance whose database dictionary is not accessible how oracle would authenticate the DBA?With the Help of password file &...
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What is oracle database ? Part VIII
«12345678 5. SqlnetThe "sqlnet.ora" file contains client side network configuration parameters located at "$ORACLE_HOME/network/admin" or "$ORACLE_HOME/net80/admin" directory on the client.This...
View Articlesqlplus: error while loading shared libraries: libclntshcore.so.12.1: cannot...
123»Error:Post Client installation receiving error as [oracle@testlaba ~]$ sqlplus "/ as sysdba"sqlplus: error while loading shared libraries: libclntshcore.so.12.1: cannot open shared object file: No...
View Articlesqlplus: error while loading shared libraries: libclntshcore.so.12.1: cannot...
«123»iii. Client re-installation Cleanup up old binaries [oracle@testlaba /]$ cd /rdbms[oracle@testlaba rdbms]$ ls -lrttotal 28drwx------. 2 oracle root 16384 Jul 14 17:47 lost+founddrwx------. 3...
View Articlesqlplus: error while loading shared libraries: libclntshcore.so.12.1: cannot...
«123iv. Fix-up errors , missing OS packages [oracle@testlaba client]$ yum install compat-libcap1Loaded plugins: product-id, rhnplugin, security, subscription-manager*Note* Red Hat Network repositories...
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steps to get adsense approval for your website or blog
Getting Google AdSense approval for your website or blogging site requires consistent effort with discipline And has no shortcuts or tricksFollowing steps will guide you to know the prerequisites for...
View ArticleCRS-4013: This command is not supported in a single-node configuration
Issue:Getting CRS-4013 , CRS-4000 error while starting up cluster servicesCRS-4013: This command is not supported in a single-node configuration.CRS-4000: Command Start failed, or completed with...
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common mistakes by DBA
Listing down common mistakes that every DBA makes at least once in his career , there are few which are common for beginner but more often for "good experienced DBA's" too. Here i highlighted...
View ArticleASMCMD-8016 unable to copy controlfile in ASM
During DB cloning or duplication , we may encounter below error while backing up control file or any other ASM db file within ASM disk group or on local file systemError:ASMCMD> cd...
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ORA-02049: timeout: distributed transaction waiting for lock
Issue: ORA-02049: timeout: distributed transaction waiting for lockBackground:Application has reported the error ORA-02049 during transaction workflow involving DB link to Oracle9i two nodes RAC. Just...
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ORA-1652: unable to extend temp segment
There could be only two ways to resolve this error ..I. Add More Space in Temporary Table-space temp-fileII. Identify the Problematic Query & Tune it !Today i came across this error , a developer...
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