Database Administration & Monitoring

A typical ODA project (and why I love Oracle Database Appliance)

Introduction You can say everything about Oracle infrastructure possibilities but nothing compares to experience based on the realization of real projects. I did quite a lot of ODA projects during the past years (on other platforms too), and I would(…)

Incremental materialized view maintenance for PostgreSQL 14?

Since PostgreSQL 9.3 there is the possibility to create materialized views in PostgreSQL. PostgreSQL 9.4 (one year later) brought concurrent refresh which already is a major step forward as this allowed querying(…)

Even faster data loading with PostgreSQL 14? wal_level=none

PostgreSQL is already very fast with loading loading large amounts of data. You can follow this post to get some recommendations for loading data as fast as possible. In addition you can create(…)

An Introduction to Pester – Unit Testing and Infrastructure checks in PowerShell

Introduction If you never heard of it, Pester is a PowerShell module, written in PowerShell. It’s a framework for writing and running unit tests, integration tests, and also infrastructure checks as we will see in a moment.

Convert private key generated via OCI Console to ppk

I am pretty new on the Oracle Cloud Infrastructure technology, so maybe I am talking about something you already know. But anyway I prefer to share this case: it can help if you encounter the same(…)

Installing MySQL Database Service (MDS)

On a previous blog post, we saw how to create an account on the Oracle OCI using the Oracle Cloud Free Tier offer and then how to(…)

PostgreSQL 14: Automatic hash and list partitioning?

Declarative partitioning was introduced in PostgreSQL 10 and since then has improved quite much over the last releases. Today almost everything is there what you would expect from such a feature: You can partition by range,(…)

Cross-cloud PMM: which TCP ports to open

By Franck Pachot . I recently installed Percona Monitoring & Management on AWS (free tier) and here is how to monitor an instance on another cloud (OCI), in order to show which TCP port must be opened. PMM server(…)

The PostgreSQL shared/global catalog

A PostgreSQL instance (or cluster) can contain many databases, three of them (template0, template1 and postgres) are there by default. Over the last years we trained many people on PostgreSQL Essentials and(…)

How to declare TNS entries in Oracle Unified Directory (OUD)

Using a LDAP server to store the TNS connection strings can be a single point of declarations for all client tools. Note that it can be a single point of failure too, thus, a High Availability LDAP configuration is recommended(…)