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Tag: sql help

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Here you can find all blog posts about the Tag: sql help. You can go back to all blog posts or take a look into our other categories & tags.

Per-tablespace storage parameters

by Hans-Jürgen Schönig | 10.2013
Just like most other database systems I am aware of PostgreSQL providing a feature called tablespaces. In general a tablespace […]

Sequences – transactional behavior

by Hans-Jürgen Schönig | 09.2013
In this posting I would like to describe some important aspects of PostgreSQL sequences. In our daily work we have […]

Reporting: Creating correct output

by Hans-Jürgen Schönig | 08.2013
Creating reports is a core task of every PostgreSQL database engineer or developer. However, many people think that it is […]

Reducing the number of columns with bit

by Hans-Jürgen Schönig | 08.2013
After digging through a table consisting of dozens of boolean values I thought it might be helpful to more folks […]

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, I pay my taxes for my […]

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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