In this blog post, we will describe typical usage scenarios for dictionary operations in the Data Masking Component, which is available in Percona Server for MySQL as an open source alternative to Oracle’s enterprise version. In particular, we will consider the following functions. gen_dictionary() – a function that returns a random term from a dictionary. gen_blocklist() – […]

MySQL Enterprise Monitor, aka MEM, retired in January 2025, after almost 20 years of exemplary service! What’s next? Of course, plenty of alternatives exist, open source, proprietary, and on the cloud. For MySQL customers, we provide two alternatives: This post focuses on the latter, as there is no apparent reason to deploy an Oracle Database […]

Every year new cohorts of programmers, DBAs, managers, and more learn MySQL. After MySQL and HeatWave Summit 2025 a few weeks ago, I realized what job needs to be done for these people and how I could help them make progress: revamping this website to focus on “the path”.

MySQL provides the MySQL Community Edition, the Open-Source version. In addition, there is the Enterprise Edition for our Commercial customers and MySQL HeatWave, our managed database service (DBaaS) on the cloud (OCI, AWS, etc.). But do you know developers can freely use MySQL Enterprise for non-commercial use? The full range of MySQL Enterprise Edition features […]

MySQL is one of the world’s most popular and widely used relational database management systems (RDBMS). Developed in 1995 by ...

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Introduction In this article, I’m going to show you how to optimize the queries executed by a Spring application running on MySQL using Releem. For a short introduction about Releem, check out this previous article, in which I explained how to set up Releem to collect metrics from your MySQL database. Spring Petclinic application The application under test is going to be the well-known Spring Petclinic that we are going to run using the MySQL profile: After starting the application, we are going to run the petclinic_test_plan.jmx JMeter test plan that is... Read More

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Modern applications need to be highly available and easy to scale. A three-node MySQL InnoDB Cluster—built on MySQL Group Replication and connected through MySQL Router—provides a reliable way to support critical workloads. To set up this architecture, you start by deploying three MySQL server instances. In this example, the nodes are assigned the following hostname-to-IP […]

Before the MySQL & HeatWave Summit, we released MySQL 9.3, the latest Innovation Release. The event was terrific, and I had the chance to meet some of the MySQL contributors. As usual, we released bug fixes for 8.0 and 8.4 LTS, but I focus on the newest release in this post.We included patches and code […]

Innodb Cluster or ClusterSet topologies already have secondary instances that can act as a failover for primary or also offload read requests. However, with MySQL 8.4, we now have the feasibility of adding a separate async replica to the cluster for serving various special/ad-hoc queries or some reporting purposes. This will also help offload read traffic away […]

Scalable systems live or die by schema clarity. That’s why most engineers now use database diagram tools to map, manage, and document their structures. But not all tools are built for modern, fast-moving teams. Here’s a look at the top database diagram tools making a difference in 2025.

The post Best Database Diagram Tools–Free and Paid  appeared first on Devart Blog.