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.

Friday, March 26, 2021

What is the difference between dynamic and static partition pruning

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From the documentation: Depending upon the actual SQL statement, Oracle Database may use static or dynamic pruning. * Static pruning ...
Thursday, March 25, 2021

How to view a specific property for a databasen using dgmgrl

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DGMGRL> show database 'PROD_STB' 'DbFileNameConvert';
Wednesday, March 10, 2021

How to set timing in a posgreSQL session

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Open session in psql: psql mydb psql (11.11) Type "help" for help. Toggle timing on/off like this: mydb=# \timing Timing is...
Tuesday, March 9, 2021

How to add a different looking index to your interim table during online redefinition

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The procedure REGISTER_DEPENDENT_OBJECT in the DBMS_REDEFINITION package lets you add a dependent object to your interim table during onli...
Tuesday, March 2, 2021

How to find out if a parameter in PostgreSQL is dynamic or not

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Oracle has both dynamic and static parameters, meaning that the former can be set in a session and while the database is up, while the latt...
Wednesday, February 24, 2021

PostgreSQL: How to set number of parallel workers in a session

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SET max_parallel_workers_per_gather=num; Default is num=2, which will give you 3 processes in total (1 master + 2 workers). If set t...
Friday, February 19, 2021

How to find the number of huge pages to set on a PostgreSQL server

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Thanks to Ibrar Ahmed for posting the article " Tune Linux Kernel Parameters For PostgreSQL Optimization " Log on to the serv...
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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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