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Be careful with prepared transactions in PostgreSQL

PostgreSQL gives you the possibility for two-phase commit. You'll might need that if you want an atomic distributed commit. If you check the PostgreSQL documentation there is a clear warning about using these kind(…)

Automate CNOs and VCOs for SQL Server AAG

During the installation of a new SQL Server environment in a Project, we wanted to automate the whole process deployment and configuration when installing a new SQL Server Always On Availability Group (AAG). This installation requires to prestage cluster(…)

Oracle Database Appliance: what have you missed since X3/X4/X5?

Introduction ODA started to become popular with X3-2 and X4-2 in 2013/2014. These 2 ODAs were very similar. The X5-2 from 2015 was different with 3.5 inches disks instead of 2.5 inches and additional SSDs for small databases (FLASH diskgroup).

SQL Server: Control the size of your Transaction Log file with Resumable Index Rebuild

Introduction In this blog post, I will demonstrate how the Resumable capability of Online index rebuild operation can help you to keep the transaction log file size under control. An index rebuild operation is done in a single transaction(…)

[Data]nymizer – Data anonymizer for PostgreSQL

Often there is the requirement to populate a test or development database with data from production, but this comes with a risk: Do you really want, that developers or testers have access to sensitive data? In a lot of companies(…)

Oracle Rolling Invalidate Window Exceeded(3)

By Franck Pachot . This extends a previous post (Rolling Invalidate Window Exceeded) where, in summary, the ideas were: When you gather statistics, you want the new executions to take into account the new statistics, which(…)

8000 PostgreSQL clusters on one host?

Coming back to the last post: 8000 databases in one PostgreSQL cluster?. As we've seen this is doable but comes with a lot of pain points. Another solution for this kind of requirement would be to host(…)

Oracle DB on Azure with Multitenant Option

By Franck Pachot . If you want to run an Oracle Database in the Microsoft Azure cloud, you will install it yourself on a VM. And then, you can expect the same as when you install it in your(…)

PostgreSQL on FreeBSD, installation from source code

This is the next post in this little series about PostgreSQL on FreeBSD. You can find the previous one here: PostgreSQL on FreeBSD, getting started PostgreSQL on FreeBSD, updating & configuration(…)

PostgreSQL on FreeBSD, installation from packages

In the last two posts we installed FreeBSD, configured networking, updated the system, installed bash and had a quick look at kernel parameters. In this post we'll install PostgreSQL from packages. Of course you(…)