As of MySQL 8.0.18, EXPLAIN ANALYZE is an indispensable tool for understanding query execution because it breaks down the query execution stage of response time by measuring each step of the query execution plan. The information is illuminating, but the output is not intuitive: it requires practice and some understanding of how MySQL executes queries beyond the table join order shown by traditional EXPLAIN output. This blog post closely examines three different examples of EXPLAIN ANALYZE output.

In this blog post, we will learn how to group sets of values into a comma-separated list, for each group, using the MySQL GROUP_CONCAT() function. Continue reading for more information…

Do you need to learn MySQL? Just starting and confused about how to query a table and get the data you need? I am creating premium MySQL Beginners content for this specific reason. To help those who want to learn the basics of MySQL but don’t know where to start. Learn more about the premium blog posts as I develop and release them.

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The Vitess maintainers are pleased to announce the general availability of Vitess 13. Major Themes # In this release, Vitess maintainers have made significant progress in several areas, including query serving and cluster management. Compatibility # This release comes with major compatibility improvements. We added support for a large number of character sets and improved our evaluation engine to perform more evaluations at the VTGate level. Gen4 planner is no longer experimental and we have used it to add support for a number of previously unsupported complex queries.

The Vitess maintainers are pleased to announce the general availability of Vitess 13. Major Themes # In this release, Vitess maintainers have made significant progress in several areas, including query serving and cluster management. Compatibility # This release comes with major compatibility improvements. We added support for a large number of character sets and improved our evaluation engine to perform more evaluations at the VTGate level. Gen4 planner is no longer experimental and we have used it to add support for a number of previously unsupported complex queries.

Rolling right along this week with another loaded issue of OpenLampTech, the newsletter for PHP/MySQL developers. Glad to have you here reading this week’s issue.

Do you need to learn MySQL? Just starting and confused about how to query a table and get the data you need? I am creating premium MySQL Beginners content for this specific reason. To help those who want to learn the basics of MySQL but don’t know where to start. Learn more about the premium blog posts as I develop and release them.

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If like me you like to share some data between all your devices (presentations, keypassX file, pictures, …), you probably use a cloud platform to store all that.

I do like to keep control of such solution, I used ownCloud and now I’m using Nextcloud.

In this article I will show you how to easily deploy Nextcloud on Oracle Cloud (OCI) using MySQL Database Service (MDS) and Object Storage.

The easiest way to deploy solutions on OCI is to use Terraform and Resource Manager’s Stack.

If you already have an account on Oracle …

This post is the final one of a series of articles on extending MySQL with the Component Infrastructure:

• Extending MySQL using the Component Infrastructure – part 1
• Extending MySQL using the Component Infrastructure – part 2: building the server
• Extending MySQL using the Component Infrastructure – part 3: component services
• Extending MySQL using the …

It is always hard to select a CPU for your own purpose. You could waste hours reviewing different benchmarks, reviews, and bloggers, and in the end, we would limit all our requirements to performance and price. For performance measuring we already have some specific metrics (e.g. in MHz to some specific tool), however, for economic comparison, it is quite hard.  Mostly we are limited by our budget. Again, for our personal purposes, we are limited only with the cash in our pockets. It is easy to compare only two or three CPUs; it is required just to compare their price and performance and then create a simple bar plot and then check the results. However, what do you do if you have at least three types of CPU, a different number of CPUs cores on board, and seven different scenarios?  It was a challenge to do it for performance, and for economic efficiency, it has become a nightmare. For a one-time purchase, it should be easier than for the …

Getting a count of table or query rows in CodeIgniter 4 is quite easy using either of the Query Builder countAll() or countAllResults() functions. Continue reading to see examples of each…

Do you need to learn MySQL? Just starting and confused about how to query a table and get the data you need? I am creating premium MySQL Beginners content for this specific reason. To help those who want to learn the basics of MySQL but don’t know where to start. Learn more about the premium blog posts as I develop and release them.

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On the previous article we saw how to easily deploy Apache Zeppelin on OCI with MySQL using Terraform.

In this article we will see how we can accelerate queries enabling MySQL HeatWave.

Enabling HeatWave

If you used a MySQL Database Service Shape compatible with HeatWave (MySQL.HeatWave.VM.Standard.E3), using the same Resource Manager Stack, you have the possibility to enable HeatWave and deploy a HeatWave Cluster for your MySQL.

The first think to do, is to edit the previous applied stack:

As we used a HeatWave compatible shape, we have the choice to deploy a HeatWave Cluster and we can choose it:

Save and Apply… the HeatWave cluster will be added:

If you …