MariaDB is an open-source relational database known for its high performance, security, and versatility. Integrating MariaDB with ToolJet allows developers to create custom internal tools that efficiently manage large datasets, execute complex queries, and maintain data consistency. For instance, you can build a real-time inventory management system, a user authentication service, or a financial reporting tool. This integration provides seamless data handling, ensuring robust performance and scalability, while reducing development time and complexity.