Ingres

Ingres is a powerful open-source relational database management system, primarily used for storing and managing data in structured formats. It allows users to create, retrieve, update, and delete data efficiently using a language called SQL (Structured Query Language). Originally developed in the 1970s, Ingres supports various applications and can run on multiple platforms. It emphasizes data integrity, performance, and security, making it suitable for enterprise-level solutions. While it may not be as widely known as some competitors, Ingres has a loyal user base and is recognized for its reliability in handling complex data requirements.