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

SQL trickery: Configuring window functions

by Hans-Jürgen Schönig | 05.2020

How to use window functions and analytics - these have long been around in PostgreSQL and are widely used by advanced developers.

How To

How to count hits on a website - concurrent counting in PostgreSQL

by Hans-Jürgen Schönig | 05.2020

How to grant users access to a certain piece of data a limited number of times. What happens if two users access it concurrently?

How To

PostgreSQL: Network latency does make a BIG difference

by Hans-Jürgen Schönig | 05.2020

Find out about how network latency is essential to PostgreSQL database performance. Measure the performance impact caused by latency.

Performance

PostgreSQL: now() vs. 'NOW'::timestamp vs. clock_timestamp()

by Hans-Jürgen Schönig | 05.2020

How to use the PostgreSQL: now() vs. 'NOW'::timestamp vs. clock_timestamp() | Issues with time and date in PostgreSQL database applications

How To

Speeding up count(*): Why not use max(id) - min(id)

by Hans-Jürgen Schönig | 04.2020

The usage of max(id) - min(id) to speed up count(*) may seem like a good approach when it comes to speeding up the process, but it can be problematic.

How To