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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.

Migrate from Sybase to PostgreSQL

by Hans-Jürgen Schönig | 10.2023
How to migrate from Sybase to PostgreSQL: Sybase ASE is dead. Those still using Sybase face the need to migrate to a new platform. 3 methods.

Citus: 7 commonly used advanced SQL tools

by Hans-Jürgen Schönig | 09.2023
How to use 6 commonly-needed SQL tools in Citus. When you run advanced SQL in Citus, what's possible? What SQL statements work? Find out.

Citus: Row store vs. column store in PostgreSQL

by Hans-Jürgen Schönig | 09.2023
Row store vs. column store - a lot has been written about this topic in the context of PostgreSQL and […]

"hired" vs. "fired" - fuzzy search in PostgreSQL

by Hans-Jürgen Schönig | 09.2023
How to implement community open source PostgreSQL to do a fuzzy search & get better results. Find out how to use the fuzzystrmatch extension.

Data locality: Scaling PostgreSQL with Citus intelligently

by Hans-Jürgen Schönig | 09.2023
How to use data locality to increase performance while sharding PostgreSQL data with Citus. What is database locality

Exclusion constraints in PostgreSQL and a tricky problem

by Christoph Berg | 09.2023
Exclusion constraints in PostgreSQL are complex, see this use case using WHERE STATUS. There are limits to what exclusion constraints can do.

Conditional foreign keys and polymorphism in SQL: 4 Methods

by Laurenz Albe | 08.2023
  This article is about the notoriously difficult problem of “conditional foreign keys”. In object-oriented programming languages, polymorphism is a […]

Indexing "LIKE" in PostgreSQL and Oracle

by Laurenz Albe | 08.2023
© Laurenz Albe 2023 Unless you use the binary collation, creating a b-tree index to support a LIKE condition in […]

Why does my pg_wal keep growing?

by Laurenz Albe | 08.2023
  "Why does my pg_wal keep growing?" That's a question I keep hearing again and again. It is an urgent […]

Reproducible builds: a PostgreSQL query optimization example

by Christoph Berg | 07.2023
This post shows how to optimize a slow query that came out of the Reproducible Builds project. The Reproducible Builds […]
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