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, September 27, 2023

Using the dbca General Purpose template and the resulting database

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If you execute the dbca GUI and choose the simple configuration, you will be using the "General Purpose" template, which gives yo...
Tuesday, September 26, 2023

What are dbca templates and how do they work?

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What are dbca templates?  Database Configuration Assistant (DBCA) templates are XML files that contain information required to create a...
Friday, September 22, 2023

How to remove the Oracle Workspace Manager component from an Oracle database

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I have installed a database through dbca, unchecking all the options boxes when going through the setup wizard: Upon completion, there is...
Thursday, September 14, 2023

How to install an extension in a postgreSQL database

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Are the desired extensions available in our installation? [postgres@myserver.no ~]$ echo "SELECT * FROM pg_available_extensions;...

Solution for [WARNING] ORA-01081: cannot start already-running ORACLE - shut it down first when running dbca

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I received the following error multiple times, when executing dbca like below: dbca -createDatabase -responsefile ./cdb.rsp -silent 2023-...
Tuesday, September 12, 2023

How to delete a pluggable database with dbca using the command line

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dbca -silent -deletePluggableDatabase \ -sourceDB cdb \ -pdbName pdb3 \

How to create a pluggable database with dbca using the command line

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In the following code snippet, I am creating the pluggable database "pdb3" as a copy of the already existing pluggable database ...
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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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