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Alejandro Duarte
Alejandro Duarte

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MariaDB, MySQL, and Node.js: Why Using the Right Connector Matters

MariaDB was born as a fork of MySQL, one of the most used open-source relational databases out there. It was created by the original developers of MySQL after its acquisition by Oracle. On the surface, they're very similar, something that has caused some unexpected misunderstandings. One of them is how developers connect to these databases in a Node.js environment.

The Connector Confusion

We developers, tend to gravitate towards what we know. To Node.js devs, this means installing the mysql npm package in order to consume a MariaDB database. This is not a bad thing as such, especially considering that when you connect to a MariaDB server, you can use the mysql command instead of mariadb (or the newer mariadb-shell). So, why bother differentiating, right?

Wrong. Here’s why.

Why the Official MariaDB Connector Matters

There are four significant areas in which choosing the official MariaDB Connector/Node.js is the right choice:

  • Compatibility with MariaDB Features: One of the major reasons to switch to the official MariaDB Connector is to ensure compatibility with MariaDB's specific features. For example, consider the LOAD DATA INFILE feature. This function allows for efficient loading of large data sets into a MariaDB table from a plain text file. If you're using the MySQL connector, you will run into unexpected issues when trying to use this feature. This was the exact reason why the popular Database Client (and its multiple editions with different names) moved from the MySQL connector to MariaDB Connector/Node.js.
  • Performance Optimizations: MariaDB has its own set of performance optimizations and improvements over MySQL. By using MariaDB Connector/Node.js, you get the best performance out of the database. For instance, MariaDB might have improved query execution plans, better indexing strategies, or more efficient ways of handling large data sets.
  • Better Error Handling: When you use the right tool for the job, you get better feedback. MariaDB Connector/Node.js is designed to provide more accurate error messages and debugging information specifically for MariaDB which helps to troubleshoot issues faster. This even extrapolates to online forums where you’ll be able to get answers quicker.
  • Future-Proofing: As MariaDB continues to evolve and add new features that diverge from MySQL, the gap between the two will likely grow in some areas. Using the official connector ensures that your applications will be future-proof and able to leverage the new functionalities and innovations that MariaDB develops.

Making the Switch

Making the transition to the MariaDB Connector/Node.js is quite straightforward. The API is similar to what most developers are familiar with, so the learning curve is minimal. The crucial step is ensuring you remove the old connector and any associated configurations and replace them with the MariaDB-specific one. Here’s a quick outline of a plan for switching from MySQL connectors to MariaDB Connector/Node.js:

  1. Initial Preparation: Assess your current application setup and understand the specific configurations associated with the MySQL connector. Note down connection strings, pooling configurations, and any custom queries or procedures that might be intimately tied to MySQL-specific functionalities. Make a backup of your data and always test the transition in a development or staging environment first. This ensures you have a smooth transition and can troubleshoot any issues without negatively impacting your production environment.
  2. Implementation: Remove the old MySQL connector from your Node.js application and install the official MariaDB Connector/Node.js. Adjust your connection strings and configurations to match the requirements of the new connector. The APIs are quite similar and require minimal adjustment. However, there might be important differences in methods or properties, so refer to the MariaDB Connector/Node.js documentation for any clarifications. Perform thorough testing, especially focusing on CRUD operations, complex queries, and any MariaDB-specific features you intend to use.
  3. Post-Switch Evaluation: Once you've switched to the MariaDB connector, monitor the application's performance, error logs, and user feedback closely. Look for unexpected behaviors, latency spikes, or other anomalies that might arise from the switch. Also, take this opportunity to explore and utilize MariaDB's unique features and optimizations. It's not just about ensuring compatibility but also about harnessing the potential of MariaDB.


While it's easy to fall into the trap of thinking "MySQL = MariaDB" due to their shared origins, as developers, we must understand the differences and the implications of the tools we choose. By opting for the MariaDB Connector/Node.js when working with MariaDB, we're not only ensuring a smoother development experience but also setting up our applications for success in the long run.

On that note, I’ll leave you with a short video that talks about some of the unique features of MariaDB:

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