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.

Monday, December 18, 2017

How to make use of the GATHER_PLAN_STATISTICS hint

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Use the gather_plan_statistics hint to view the optimizer's estimation of rows vs. the actual returned number of rows. Notice the cas...

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How to use dbms_spm.load_plans_from_sqlset

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To load a specific SQL ID with a specific plan hash value from an STS into your SQL Plan Management Base, use: set serveroutput on declare...

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Friday, December 15, 2017

A list of eBS users

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To view the users that are installed as a part of an eBS installation, use the following query: SELECT EBS.ORACLE_USERNAME,U.PROFILE FROM...

Tuesday, December 5, 2017

How to execute and capture an SQL statement in the SMB at the same time

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An experienced co-worker showed me this neat trick to execute an SQL statement and capture its execution plan in the SQL Plan Management Ba...

Friday, December 1, 2017

How to match an exact string using grep

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grep -w string See it in use here

How to remove unwanted parameters from init.ora using a shell script

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1. Create a "removal list" containing your unwanted parameters. For example, put the following into a text file called removal_lis...

Thursday, November 16, 2017

Basic compression, advanced compression, HCC - an overview

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Basic Compression: Basic compression was released in Oracle 9iR2.It is part of the Enterprise Edition and comes at no extra licencing cos...

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About Me

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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