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Oracle sqlplus query output into file
Quite useful, I had the case where I needed to provide a CSV file to an external party from our Oracle 10gdatabase. No problem, there are loads of CSV export tools out there. But it then transpired...
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What is Oracle Supplemental Logging?
Here is a quick synopsis on supplemental logging. I have simply distilled the information gathered from The “Oracle Database Utilities” Manual, Chapter 17 for 10g R2. Because Streams uses logminer and...
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ORACLE DATAGUARD 10g WITH ASM CONFIGURATION
Oracle Dataguard ensures high availability, data protection, and disaster recovery for enterprise data. Data Guard provides a comprehensive set of services that create, maintain, manage, and monitor...
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Script for Sessions with high physical reads
There is script to check session with have high physical reads : set linesize 120 col os_user format a10 col username format a15 col pid format 9999999999 PROMPT SESSIONS SORTED BY PHYSICAL READS...
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How to Backup and Restore a RAC Database
This example illustrates how to backup and recover a 2-node, 10gR2 RAC cluster on Linux. Backup and recovery operations for RAC databases are similar to that of single instance databases, however there...
View ArticleRMAN DUPLICATE FROM Active Standby Database
Recently I have published post about issue with RMAN duplication of Oracle database when standby database was used as a target. Later in updates of mentioned post I have confirmed that with fix for...
View ArticleHow To Change Timezone on a CentOS 6 and 7 Easily
You can easily change timezone in CentOS Linux using the following methods. CentOS timezone config files and directories /usr/share/zoneinfo/ – The system timezone directory contains the files as per...
View ArticleBigfile Tablespaces in Oracle
Bigfile tablespaces are tablespaces with a single large datafile (up to 4G blocks). In contrast normal or smallfile tablespaces can have several datafiles, but each is limited in size. The system...
View ArticleTips for DBMS_STATS
Taking statistics and have them updated is a very important task on most Oracle databases, the CBO (Cost Based Optimizer) evaluates the cost of several Execution Paths, this cost is mainly based on...
View ArticleArchived log generation volume and count report
Source : http://lefterhs.blogspot.co.id/2012/07/archived-log-generation-volume-and.html V$ARCHIVED_LOG displays information about the archived logs generated by your database and haven’t yet aged out...
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