Knowing the first and last day of a given month can help you figure out other information relevant and important data. You can determine these values using select MySQL date functions. Learn how in this Medium post I’m resharing here for any interested readers…

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The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the …

If you want to set up a MySQL database to store data for websites, blogs, or applications, you can use a Docker container. It’s relatively simple to do. And like shuffling a deck of cards, reversing a string in Python, or writing a recursive function, it’s a suitable exercise for beginners just starting out with MySQL and backend web development.

Let’s take a look at exactly what a Docker container is, and how you can use it to set up MySQL.

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What Is a Docker Container?

A Docker container is a self-contained software development environment that includes all of the necessary …

In SQL, the WHERE clause filters rows returned by the FROM clause table in SELECT queries using one or more search condition filters. Oftentimes, in application development, we accept user input values which in turn, are the WHERE clause conditional filters against the table columns. In this post, I am covering the CodeIgniter 4 where() function and parameter binding for safer filtering in SELECT queries. Continue reading and see examples in MySQL…

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Wow! Eleven issues so far! Are you ready for your weekly source of original and curated PHP/MySQL content? Ready to learn and grow as a backend developer? Well, you are in luck because OpenLampTech, the newsletter for PHP/MySQL developers, is out and ready for you. Dig in!!!

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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Recently we got a question about how one can perform a minor version upgrade of a Galera Cluster, and today we just want to say that it is reasonably straightforward. While upgrades are a feature of Galera Manager that we are most excited to see come soon, today, doing it manually on the command line is quite simple! In this post, we will go through upgrading a 9-node geographically spread cluster, from MySQL 8.0.23 to 8.0.26. We also have extensive documentation: Upgrading Galera Cluster.

We have 3 nodes each in Singapore, London and San Francisco, making the cluster comprise of a total of 9 nodes, as we can confirm by executing: show status like 'wsrep_cluster_size';.

Since we installed all this via the RPM package manager on CentOS 7 by adding the YUM repository to the …

I’m always trying different programming exercises in order to learn and grow as a Developer. One of my favorite learning exercises is porting over from one SQL dialect to another, as they all have their own individual features. Having to hack together or mirror non-existent functionality really challenges my thinking, therefore enabling growth and improvement in my query skills. In this post, I share reproducing the same query results using MySQL for queries I first learned of/discovered that were covered using Oracle SQL and specific implementation features…

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Guess what? OpenLampTech, the newsletter for PHP/MySQL developers, has a new issue full of great curated content for your reading experience this week. Come on by and read the publication!

Get tailored articles with Refind delivered each day in your inbox. Refind is part of my daily reading habit. Make it part of yours by using my referral link. At no additional cost to you, I will be eligible for a premium subscription with more sign-ups from my link. “The essence of the web, every morning in your inbox. Subscribe for free“

The Newsletter for PHP and MySQL Developers

This latest newsletter issue has a wide range of PHP/MySQL articles covering:

• UNION queries in Laravel
…

There are plenty of articles on the Internet that tell you to setup a Galera Cluster by disabling an OS based firewall and also disabling SELinux. While we agree that this might be the fastest way to get your Galera Cluster setup, it is not necessarily good security hygiene, and we would prefer if you started 2022 with a bit more secure Galera Cluster!

What is SELinux? Is is Security-Enhanced Linux that allows administrators to allow who has more control over the system. It has permissive and enforcing mode, and is turned on by default in Red Hat Enterprise Linux and derivatives. It is important to remember that if you install Galera Cluster via a package that we provide, we have provided all the necessary contexts for it. You effectively do not have to disable SELinux to get started.

However, if you are using the rsync method for a …

It’s that time once again. I’ve published another issue of OpenLamp.tech, the newsletter for PHP/MySQL developers, over the weekend with all the curated content for your reading experience. There is plenty to learn for everyone so dig in…

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This week in the OpenLamp.tech newsletter, we have articles covering:

• WordPress theme migration checklist
• Form validation in CodeIgniter 4
…

Hey everyone, I’m creating a dedicated page of ‘Friend links‘ for all of my Medium first articles and blogs. Continue reading to learn more and how to gain access to them…

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Medium’s Friend Link

If you’re a paying Medium member, not only can you read unlimited blog posts by any author on the platform, but you can also publish your blog posts and articles behind the paywall and earn some money from them. Every article you put behind the paywall also has a ‘Friend …