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

Removing duplicates in PostgreSQL

by Hans-Jürgen Schönig | 12.2012

Today somebody asked me how to remove duplicates which accidentally made it into a table. The problem is: A normal […]

Why the tax collector hates sequences

by Hans-Jürgen Schönig | 09.2012

I guess people might wonder why I started to write posts about taxes. Well, Ipay my taxes for my business […]

Outer joins revisited

by Hans-Jürgen Schönig | 08.2012

Some time ago I wrote about joins and especially about outer joins. However, people repeatedly make the same errors over […]

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