Last time we tried to connect to a MySQL DB instance in OCI with Cloud Shell, we needed to use the bastion service. See here.

Now, we also have the possibility to bypass the bastion host as Cloud Shell offers the possibility to change network.

As you know, in Oracle Cloud Infrastructure, a MySQL DB instance is not exposed in the public subnet and doesn’t have the possibility to get a public IP.

In the Private Subnet, we often have a security list allowing all internal IPs (from public and private subnet of the VCN) to connect to the MySQL port(s).

If the security list is present, we can click on the Cloud Shell icon and once loaded, change the network:

We need to create a new Private Network Definition:

In case you don’t have the ports open for MySQL in the …

How to connect to a MySQL DB Instance in OCI using Cloud Shell in the browser.

When working with MySQL (or any database!), it's essential to understand how indexes work and how they can be used to improve the efficiency of queries. An index is a separate data structure that maintains a copy of part of your data, structured to allow quick data retrieval. Usually, this structure is a B+ Tree. We have an entire post on how indexes work if you want to go into greater detail. Obfuscated indexes Creating indexes is only part of the battle. You must also know how to write your queries so that you allow MySQL to use your indexes. One common mistake people make when writing queries is that they obfuscate their indexes. Obfuscating an index simply means that you're hiding the indexed value from MySQL. Let's say you have a todos table with a created_at column that records a timestamp of when the record was created.CREATE TABLE `todos` ( `id` int NOT NULL AUTO_INCREMENT, `title` varchar(255) NOT NULL, `created_at` timestamp NOT NULL …

Using redundant conditions as a method to unlock obfuscated indexes and improve performance in MySQL.

Learn how to seamlessly add a new node to MySQL Group Replication from a backup. Scale your cluster, save time, and efficiently manage data updates and recoveries.

1. Hot Physical backup approach
2. Clone plugin approach
3. Logical backup approach

We highly recommend checking out our previous blog post on …

I already wrote on how to deploy WordPress on OCI using MySQL HeatWave, the MySQL Database Service in Oracle Cloud Infrastructure:

• Using MySQL Database Service for WordPress
• Deploying WordPress on OCI with MySQL Database Service: the easy way !
• Deploy WordPress on OCI using MDS – updated version
• Deploy WordPress on OCI with MySQL Database Service using Read Replicas
• …

Fastest and easiest method to deploy WordPress and MySQL 8.0 on OCI with an always free tier.

The Vitess Maintainer team is pleased to announce the results of a recent third-party security audit of the Vitess code base. Vitess had previously been audited in 2019. Given the amount of time that has passed, and the magnitude of change during that time, the maintainer team decided to request a fresh audit. Starting in March 2023, an independent team from Ada Logics performed a full security audit of Vitess with a special focus on VTAdmin, which is a relatively new addition to Vitess.

This blog post was originally published in November 2017 and was updated in June 2023.

In this blog, we’ll provide a comparison between MariaDB vs. MySQL (including Percona Server for MySQL).

Introduction: MariaDB vs. MySQL

The goal of this blog post is to evaluate, at a higher level, MariaDB vs. MySQL vs. Percona Server for MySQL side-by-side to better inform the decision making process. It is largely an unofficial response to published comments from the MariaDB Corporation.

It is worth noting that Percona Server for MySQL is a drop-in compatible branch of MySQL, where Percona contributes as much as possible upstream. MariaDB Server, on the other hand, is a fork of MySQL 5.5. They cherry-picked MySQL features and don’t …

ProxySQL is a high-performance MySQL proxy with a small footprint that can be installed in multiple environments such as VM, K8s, bare-metal, and Docker containers. In this guide, you will install and set up load balancing of MySQL Cluster via ProxySQL on a Debian 11 server.