On July 1st, 2024, Oracle launched MySQL 9.0.0, the first release in the 9.x series. This release and the following six versions (9.1.0 to 9.6.0) are designated as “Innovation Releases.” These releases are characterized by their short support lifecycles, lasting only one quarter, and their focus is on introducing new features and innovations, which may […]

This article guides you through setting up replication between a HeatWave MySQL instance (source) and an on-premise standalone MySQL instance (replica).
It highlights key steps like creating a replication user, securing the connection, and using MySQL Shell utilities for data transfer.

The post Get Your HeatWave MySQL Data On-Premises with Replication first appeared on dasini.net - Diary of a MySQL expert.

You probably missed the news, but… PT-1751: Adds –where param to pt-online-schema-change This brings the possibility to perform what I would call an “inverted purge” because you are not actually purging rows from your multi-terabyte table, but rather, you copy the small percentage of rows you want to keep to a new table and then […]

We’re excited to announce that both Percona Server for MySQL and Percona XtraBackup now support the ARM64 architecture on Red Hat Enterprise Linux (RHEL) 8/9 and Oracle Linux (OL) 8/9. The packages with the aarch64.rpm extension can be found on Percona Software Downloads. The aarch64.rpm file extension indicates that the RPM package is specifically built for the ARM64 architecture and intended […]

In MySQL 8.0 we introduced a totally new design for InnoDB REDO Log management. The main difference was about implementing a lock-free solution for user threads, and use dedicated REDO threads for all background IO write work.

for more details, see an excellent and very detailed article by Pawel : https://dev.mysql.com/blog-archive/mysql-8-0-new-lock-free-scalable-wal-design/

However, over a time we also added an option to let users to switch REDO threads=OFF to enforce REDO log processing efficiency in some particular cases. Unfortunately this feature created a lot of confusions for MySQL users, and many ones interpreted this in different ways, providing different and sometimes opposite advices, etc..

My main advice will be always : test each feature yourself and within your …

Warning! Recently, Jean-François Gagné opened a bug on bug.mysql.com #115517; unfortunately, the bug is now private. However, the bug looks quite serious. We at Percona have performed several tests and opened the issue PS-9306 to investigate the problem. In short, what happens is that if you create a large number of tables, like 10000, the […]

Regular expressions are a powerful tool for developers. In this post we take a look at some basic examples of how to use values returned from regular expression functions in other functions to manipulate our data.

MySQL is the most popular database server used by websites to store their important data. In addition to using phpMyAdmin ...

Read More

The post How to Manage MySQL Databases and Users from the Command Line appeared first on RoseHosting.

How to use OCI GenAI service to query data stored in MySQL using Retrieval Augmented Generation.

MySQL HeatWave 9.0 was released under the banner of artificial intelligence. It includes a VECTOR datatype and can easily process and analyze vast amounts of proprietary unstructured documents in object storage, using HeatWave GenAI and Lakehouse. Oracle Cloud Infrastructure also provides a wonderful GenAI Service, and in this post, we will see how to use […]