Database Administration & Monitoring

2024.pgconf.eu – Bigger than ever, the family is growing fast

The PostgreSQL community is growing every year and the same happens for pgconf.eu, which happened in Athens, Greece, this year. Attending this event is one of the best opportunities to get in touch with the people behind PostgreSQL. This year(…)

Improved not null/null planning in PostgreSQL 17

PostgreSQL 17 came with quite some additional features for the optimizer. One of them is about “is null” and “is not null” handling when column have a “not null” constraint defined. In the past it was(…)

PostgreSQL 18: Tweaking relation statistics

Up to now, there is no official way in PostgreSQL to tweak optimizer statistics manually. While this is quite common in other relational databases, PostgreSQL did not provide anything to do this. The first steps to allow this have now(…)

PostgreSQL 18: REJECT_LIMIT for COPY

With the just released version of 17 of PostgreSQL, copy got the “ON_ERROR” switch. This is very useful if you load something which contains rows that cannot be inserted into the target(…)

Understanding Head Blockers in SQL-Server

A customer of mine had a recurring issue with one of his business critical applications where everything was frozen and stuck for the users. The issue was caused due to a head blocking transaction which increased blocking in the database(…)

Enhancing PostgreSQL Performance with Index Advisor and HypoPG

In database management, query performance is critical for efficient data retrieval. PostgreSQL, a powerful open-source database, offers various extensions to optimize and tune query performance. Two such extensions are Index Advisor and HypoPG. These tools help database administrators (DBAs) identify(…)

ExaCC OCI integration with OEM 13.5 Cloud Control installed On-premises.

Introduction I wrote this article to show how you can integrate Legacy OEM with your Cloud environment in this case Oracle ExaCC.To have overall view on your Exadata X9M Cloud Infrastructure, statistics related to CPU/Memory/ASM Storage usage. Your on premise(…)

OEM Cloud Control Release update to 13.5.0.23

Introduction This is upgrade procedure to release update from 07 Aug 2024. 13.5.0.23 Its also one of prerequisites for integrating OEM with OCI Exadata Cloud@Customer solution available on my other post under this link: https://www.dbi-services.com/blog/exacc-oci-integration-with-oem-13-5-cloud-control-installed-on-premises Patching procedure and(…)

PostgreSQL 18: Verify tar format and compressed backups

While PostgreSQL 17 was released just a couple of days ago, the development of PostgreSQL 18 is already going on and the first patches got committed. One of them addresses a limitation with pg_verifybackup: Currently(…)

Coming back to the Future Data Driven Summit 2024’s Event last night

Last night, I followed with Amine Haloui the Future Data Driven Summit 2024 from 3 PM to 2 AM This event was remote and very easy to follow. One day with 5 rooms and  more then 55 speakers…(…)