PostgreSQL is a powerful, open-source relational database system used by startups and large companies alike. It allows developers to store, retrieve, and manage data in a structured and reliable way.
Unlike simple file storage, PostgreSQL enforces data consistency, supports complex queries, and can handle large amounts of information efficiently. It is especially popular in web applications, financial systems, and learning management platforms because of its stability and flexibility.
PostgreSQL also supports advanced features such as JSON data, full-text search, and custom data types, making it a great choice for modern applications that grow over time.