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, December 27, 2024

How to check why a PostgreSQL server won't start

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journalctl -u postgresql-15.service Example output: Dec 27 07:15:50 psl0part-prod-pgsql02.skead.no systemd[1]: Unit postgresql-15.service...
Monday, December 2, 2024

How to use rsync between two servers

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For example, to syncronize two servers so they get identical file structures:  Source server: server1.oric.no  Destination server: server2.o...
Thursday, October 31, 2024

Error: ORA-16831: operation not allowed on this member

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When trying to add a standby database to your configuration, I received DGMGRL> add database 'cdb_stby1' as connect identifier ...
Wednesday, October 30, 2024

How to use autoconfig to create a sample config file for non-cdb to pdb conversions

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java -jar autoupgrade.jar -create_sample_file config /tmp/autoconfig_example.txt noncdbtopdb
Tuesday, October 29, 2024

Lock and expire users

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An anonymous PL/SQL block to lock and expire open accounts: SET VERIFY OFF connect "SYS"/"&&sysPassword" as SYS...
Tuesday, October 15, 2024

Arguments that can be passed to "dbca -createDatabase" usage output

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This can certainly come in handy one day... -createDatabase - Command to Create a database. -responseFile | (-gdbN...
Monday, October 14, 2024

How to add a post-creation script to your dbca createDatabase statement

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Given that you have saved your responsefile in the oracle user's home directory, use the -customScripts to point out a script that will...
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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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