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Category: How To

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

Install PostgreSQL 9.6 with Transparent Data Encryption

by CYBERTEC Guest | 06.2019
written by Granthana Biswas Cluster encryption Cluster encryption can be used if the DBA cannot or does not rely on […]

Abusing SECURITY DEFINER functions in PostgreSQL

by Laurenz Albe | 05.2019
UPDATED August 2023: Functions defined as SECURITY DEFINER are a powerful, but dangerous tool in PostgreSQL. The documentation warns of […]

PostgreSQL: Using CREATE USER with caution

by Hans-Jürgen Schönig | 05.2019
PostgreSQL offers powerful means to create users/ roles and enables administrators to implement everything from simple to really complex security […]

1-to-1 relationship in PostgreSQL for real

by Pavlo Golub | 05.2019
Years ago Years ago I wrote this post describing how to implement 1-to-1 relationship in PostgreSQL. The trick was simple […]

Triggers to enforce constraints in PostgreSQL

by Laurenz Albe | 04.2019
  Sometimes you want to enforce a condition on a table that cannot be implemented by a constraint. In such […]

DECLARE CURSOR in PostgreSQL or how to reduce memory consumption

by Hans-Jürgen Schönig | 04.2019
Have you ever heard about cursors in PostgreSQL or in SQL in general? If not you should definitely read this […]

Security and PostgreSQL - a reminder on various attack surfaces

by CYBERTEC Guest | 04.2019
Needless to say, security is a topic that nobody in the wider IT industry can ignore nowadays, with a constant […]

PostgreSQL count(*) made fast

by Laurenz Albe | 04.2019
  It is a frequent complaint that count(*) is so slow on PostgreSQL. In this article I want to explore […]

unaccent: Getting rid of umlauts, accents and special characters

by Hans-Jürgen Schönig | 03.2019
Database people dealing with natural languages are all painfully aware of the fact that encodings, special characters, accents and alike […]

Choose plpgsql variable names wisely

by Pavlo Golub | 03.2019
Pavel Stehule recently wrote the post "Don't use SQL keywords as PLpgSQL variable names" describing the situation when internal stored […]
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