Database Administration & Monitoring

SQL Server: Find who forced a plan in Query Store with this new XEvent

The latest Cumulative Update for SQL Server 2019 has been released this week on Monday. It brings many bug fixes and some small improvements. One of these improvements is the addition of an extended event to identify the(…)

SQL Server: Automatic Soft-NUMA and uneven CPU load

SQL Server has CPU limitations depending on the Edition. If your VM is not configured properly you can reach these limits very easily. In a previous post, I described the effect VM misconfigurations can have on performance because not(…)

Oracle Data Guard : Where to Host The Master Observer

By Mouhamadou Diaw An observer is an OCI client that connects to the primary and target standby databases using the same SYS credentials you used when you connected to the Oracle Data Guard configuration with DGMGRL. The observer is(…)

Oracle 21c : Dealing with FastStartFailoverActionOnPreCalloutFailure

By Mouhamadou Diaw In a previous blog I talked about the FSFO callout scripts which is a new feature with Oracle 21c with the broker. This feature will allow to execute some tasks before and after a(…)

PostgreSQL 15: Some new features

PostgreSQL version 15 is on its way and we get a better and better look, what will be included in the future release. So it's time to have a look at some new future features(…)

PostgreSQL 15: More flexibility with setting parameters

Another nice feature just made it into PostgreSQL 15: You can now control who is allowed to set specific parameters. This gives you a lot more flexibility, especially when you are hosting PostgreSQL instances for your customers. You can delegate(…)

Extract all DDL from an Oracle database

Introduction Extracting DDL is sometime useful for creating similar objects in another database without data. Basically everything can be extracted from a running Oracle database. The needs My customer asked me to replicate a database without any data. The goal(…)

Active Duplicate from standby database

By Mouhamadou Diaw Generally we do active duplicate from primary database, but I think it should be fine to see what happen if we do active duplicate a database from a standby database. So, I do some tests and I(…)

Upcoming RHEL 9

This Blog is about a setup of RHEL 9 BETA and changes to RHEL 8 and Fedora 34 which is the base of RHEL 9. Let’s start with the setup. Start the installation. Preview warning:(…)

PostgreSQL client only installations from source code

During our PostgreSQL DBA Essentials workshops we install PostgreSQL from source code. We do that, to provide the participants all the options they have. There is nothing wrong with using a packaged distribution of PostgreSQL, don't get(…)