Minimalistic Oracle

Minimalistic Oracle contains a collection of practical examples from my encounters with Oracle technologies. When relevant, I also write about other technologies, like Linux or PostgreSQL. Many of the posts starts with "how to" since they derive directly from my own personal experience. My goal is to provide simple examples, so that they can be easily adapted to other situations.

Wednesday, May 28, 2014

How to recreate the control file and rename the database and the datafiles

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To change a database name or file names, it can be practical to recreate the control file, and in some cases your only option. In this exa...

How to use adrci to tail the alert log

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oracle@myhost:[PRODDB01]# adrci ADRCI: Release 11.2.0.4.0 - Production on Wed May 28 15:06:44 2014 Copyright (c) 1982, 2011, Oracle and/o...
Tuesday, May 27, 2014

How to backup and delete a specific range of archivelogs

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Use the "BACKKUP ARCHIVELOG FROM LOGSEQ .. UNTIL LOGSEQ" syntax: RMAN> backup archivelog from logseq 3 until logseq 4 delete i...
Friday, May 23, 2014

How to set up a standard listener on port 1521

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Recently I have seen cases where customers have defined multiple listeners in the $TNS_ADMIN/listener.ora file, but nontheless have started ...
Thursday, May 22, 2014

What is the significance of using the clone.pl script to clone an existing ORACLE_HOME to a new one?

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In short, when using the clone method, Oracle will relink your binaries and update your Inventory. Afterwards, your new ORACLE_HOME can be...

How to use the glogin.sql file to set global sqlplus attributes

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The file $ORACLE_HOME/sqlplus/admin/glogin.sql can be used to define global attributes for users of sqlplus on that particular host. For e...
Wednesday, May 21, 2014

How to create the libobk.a link in $ORACLE_HOME/lib

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su - oracle cd $ORACLE_HOME/lib ln -s /usr/lib/libobk64.a libobk.a
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About Me

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Name: Vegard Kåsa
My career as an Oracle DBA startet in 2001, when I acceptet a request to take on the responsibility as my current employer's DBA. From that point and onwards, managing Oracle databases has kept me busy and engaged. I enjoy my work, and particulary appreciate the constant learning and devlopment that comes with the job. From 2014, I am self-employed through my company Oric Consulting AS (Norway), and from 2024 Oric Consulting AB (Sweden) I currently live in Göteborg, Sweden, with my family.
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