Blog Posts

Searched CASE expression in PostgreSQL – with examples.

In this blog post, we will look at one type of ‘conditional formatting’ that enables you to perform complex calculations. PostgreSQL (and SQL in general) provides us with a couple of variants of the CASE statement which could be used for this very thing, among many many others. Learn with me as I make my way through writing this post…

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Handy string functions: right() and left() with examples in PostgreSQL

In this blog post, I will visit a couple of handy string functions for extracting a specified number of characters from a string of text. Yet, with both functions, you can start from a certain position. Either left (beginning) or right (the end). Let’s see them in action with some examples…

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ROWS and RANGE: Windowing clause defaults – learning by example in MySQL.

The more I dive into Window Functions, at least 2 things are very apparent to me: 1) They are incredibly powerful, 2) I have a long ways to go with wrapping my head around them. I recently wrote, The PARTITION BY clause of a Window Function – with an example in MySQL where I built upon a base Window Function query with the PARTITION BY clause. However, in this post, I want to return to and explore, some defaults going on behind the scenes in that query in regards to the windowing portion.

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The PARTITION BY clause of a Window Function – with an example in MySQL.

In this blog post, I will look at a couple of interesting result sets using the PARTITION BY clause as part of the OVER() clause of a Window Function with an example using MySQL.

[Head this way for great MySQL blogging >>>]

MySQL 8 Blog Posts – Technical writing/blogging samples.

This blog post will feature some of my recent technical blog post for the wonderful folks over on the Severalnines database blog. These posts, specifically cover MySQL 8 and the new(er) features and enhancements that are continuously implemented by the fantastic MySQL team. MySQL is steadily getting better and better, incorporating modern (and much needed) features found in other open-source, and propriety SQL ecosystems alike. It is slowly becoming my favorite!

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Explore the official MySQL 8.0 Online Manual for more information.

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Josh Otwell has a passion to study and grow as a SQL Developer and blogger. Other favorite activities find him with his nose buried in a good book, article, or the Linux command line. Among those, he shares a love of tabletop RPG games, reading fantasy novels, and spending time with his wife and two daughters.

Disclaimer: The examples presented in this post are hypothetical ideas of how to achieve similar types of results. They are not the utmost best solution(s). The majority, if not all, of the examples provided, is performed on a personal development/learning workstation-environment and should not be considered production quality or ready. Your particular goals and needs may vary. Use those practices that best benefit your needs and goals. Opinions are my own.