Issue: Seeing the following error when running ‘vagrant up’ on single-instance oracle vagrant file undefined method `exists?' for class File (NoMethodError) Cause: Small but critical Ruby API ch...

Problem I recently worked with a customer who struggled to promote database changes to production quickly and safely. Their changes often remained locked in manual processes, isolated from modern C...

Overview I’ve been hitting this Liquibase checksum validation error more frequently in a specific database. Here’s what I found out. Liquibase checksum validation errors occur when Liquibase detect...

Issue I recently tried to push updates to my GitHub Pages hosted site (powered by Jekyll Theme) and got the following error at the ‘Build’ stage. Run ruby/setup-ruby@8575951200e472d5f2d95c625da0c7b...

Issue I ran into this issue when creating my first GitHub Actions release using actions@create-release. Cause When you delete a repository and recreate it with the same name, it is possible that s...

Create an Oracle RDS database in AWS within minutes by automating the entire provisioning process using Ansible. For this demo I’m running Ansible (2.9.2) and the latest version of AWS CLI on RHEL8...

Logical mistake, end of testing cycle, need to rollback database to a previous state? RMAN restore can help, however there’s an easier way: we can address these scenarios with the Flashback techniq...

This blog describes installation and configuration of Oracle Enterprise Manager (OEM) Cloud Control 13c on RHEL6. The implementation described in this blog is based on a server installation with a ...

Transparent HugePages (THP) memory is different from standard HugePages memory because the kernel thread allocates memory dynamically during runtime. Standard HugePages memory is pre-allocated at s...

This post describes silent installation and configuration of Grid Infrastructure 18c (64bit) and Oracle Database 18c (64bit) on RHEL 7. The implementation described in this blog is based on a serve...