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Planet MySQL
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Planet MySQL - https://planet.mysql.com
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Node.js Buffer vs JavaScript ArrayBuffer: The Complete Guide to Memory Management in 2026
Node.js Buffer vs JavaScript ArrayBuffer: The Complete Guide to Memory Management in 2026 If you have ever worked with binary data in Node.js, you have stumbled into Buffer and wondered what on earth it has to do with ArrayBuffer from the browser. They sound similar. They look similar in code. But they are fundamentally different […]
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Monitoring MySQL data locks, or the tip of the iceberg
Monitoring MySQL data locks, or the tip of the iceberg This story is about recent (*) performance improvements implemented in MySQL, related to monitoring of data locks. (*) Originally written in Feb 2025. Refresher What is a data lock? When a user session connects to the MySQL database, it executes SQL queries. The query runs; […]
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Symlinks are Unsafe since MySQL 8.0.39 (and maybe even before)
You read this right, symbolic links (symlinks) are unsafe in MySQL since at least 8.0.39. As always, it is a little more complicated than that, but if you are using symbolic links and in certain conditions, you risk a crash. I think it is important to raise awareness on this, hence this post.
My attention was brought to this via the now private Bug #120156: MySQL 8.0.39/8.0.42
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Join the Public MySQL Community Discussion Webinar (Edition #3)
Following the strong participation in the first two editions of our Public MySQL Community Discussion webinar series, we’re excited to invite you to Edition #3. These sessions are part of our ongoing commitment to increase transparency, strengthen collaboration, and make it easier for the community to provide input that helps shape the evolution of MySQL’s. […]
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50 SQL Interview Questions and Answers (2026 Advanced Edition)
We understand that tackling SQL interviews can feel challenging, but with the right focus, you can master the required knowledge. Structured specifically for the 2026 job market, this comprehensive resource provides 50 real, frequently asked SQL interview questions covering everything from basic definitions and data manipulation to advanced analytical queries and performance optimisation. Section 1: SQL […]
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