This post was originally published on the Percona Community blog.If you are in the world of application development, you know that every application has a lifecycle. An application lifecycle refers to the stages that our application goes through, from initial planning, building, deployment, monitoring, and maintenance in different environments where our application can be executed.On […]

MySQL HeatWave User Camp Bangalore

We have in the past covered Installing Galera Cluster 4 with MySQL 8 on Ubuntu 18.04 and also Installing Galera 4 with MySQL 8 on Ubuntu 20.04, and it would seem appropriate to also cover Ubuntu 22.04 LTS (Jammy Jellyfish). We do have excellent documentation and we also have the ability for you to automate all of this via the GUI tool, Galera Manager.

Prerequisites

• All 3 nodes have to have Ubuntu 22.04 LTS installed. The current version at the time of this writing is Ubuntu 22.04.3 LTS.
• Firewall (if setup) needs to …

In this post we will discuss how to use the OCI TypeScript/JavaScript SDK to retrieve information about a specific MySQL HeatWave instance and how to start/stop that instance programatically.

Recently during the Swedish MySQL User Group (SMUG), I presented a session dedicated to MySQL InnoDB Primary Keys.

I forgot to mention a detail that many people are not aware, but Jeremy Cole has pointed out.

Primary Key always included in secondary indexes at the right-most column

When we define a secondary index, the secondary index includes the Primary Key as the right-most column of the index. It’s silently added, meaning that it’s not visible but it’s used to point back to the record in the clustered index.

This is an example with a table having a Primary Key composed of multiple columns:

CREATE TABLE `t1` (
`a` int NOT NULL,
`b` int NOT NULL, 
`c` int NOT NULL,
`d` int NOT NULL,
`e` int …

Episode #56 of MySQL Shorts in now available!

Oracle offers a variety of SDKs for interacting with Oracle Cloud Infrastructure resources. In this post we discuss how to list the MySQL HeatWave instances for a given compartment.

Recap of the MySQL Belgian Days 2024

Learn about a few common mistakes when designing your MySQL database schema.

You know about MySQL; we know about MySQL. After all, it’s been the most popular database system for years now. And now that we have that out of the way, on to the more important stuff!Because MySQL is so popular, you might be considering migrating your database to MySQL Community Edition or MySQL Enterprise. If […]