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Hans-Jürgen Schönig

Founder & CEO of CYBERTEC
Hans-Jürgen Schönig has worked with PostgreSQL since the 90's. He is the CEO and technical lead of CYBERTEC PostgreSQL International, a market leader in the field. He's served countless customers around the globe since the year 2000. He is also the author of the well-received "Mastering PostgreSQL" book series, as well as several other books about PostgreSQL replication and administration.

Articles by Hans-Jürgen Schönig

3 ways to detect slow queries in PostgreSQL

by Hans-Jürgen Schönig | 08.2018
(Last updated 18.01.2023) When digging into PostgreSQL performance, it is always good to know which options one has to spot […]

A beginners guide to PostgreSQL's UPDATE and autovacuum

by Hans-Jürgen Schönig | 07.2018
Looking at the type of PostgreSQL support requests, we have received recently, it is striking to see, how many of […]

Monitoring cluster performance in PostgreSQL

by Hans-Jürgen Schönig | 06.2018
When people are talking about database performance monitoring, they usually think of inspecting one PostgreSQL database server at a time. […]

PostgreSQL: Detecting periods of activity in a timeseries

by Hans-Jürgen Schönig | 05.2018
I have already written about timeseries and PostgreSQL in the past. However, recently I stumbled across an interesting problem, which […]

CREATE VIEW vs ALTER TABLE in PostgreSQL

by Hans-Jürgen Schönig | 05.2018
In PostgreSQL, a view is a virtual table based on an SQL statement. It is an abstraction layer, which allows […]

Mapping Oracle datatypes to PostgreSQL

by Hans-Jürgen Schönig | 05.2018
(updated 2023-05-08) For those of you out there working with PostgreSQL in a professional way, migrating from Oracle to PostgreSQL […]

PostgreSQL: Sharing data across function calls

by Hans-Jürgen Schönig | 05.2018
Recently I did some PostgreSQL consulting in the Berlin area (Germany) when I stumbled over an interesting request: How can […]

Tech preview: PostgreSQL 11 - CREATE PROCEDURE

by Hans-Jürgen Schönig | 04.2018
Many people have have been asking for this feature for years and PostgreSQL 11 will finally have it: I am […]

ora_migrator: migration from Oracle to PostgreSQL

by Hans-Jürgen Schönig | 04.2018
As some of you might know, CYBERTEC has been helping customers with PostgreSQL consulting, tuning and 24x7 support for many […]

idle_in_transaction_session_timeout: Terminating idle transactions in PostgreSQL

by Hans-Jürgen Schönig | 04.2018
When running PostgreSQL on a production system, it might happen that you are facing table bloat. As you might know […]
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