PostgreSQL is an advanced open-source relational database known for its strong standards compliance, extensibility, and powerful features. It supports ACID transactions, indexing, JSON storage, user-defined types, stored procedures, and advanced query optimization. PostgreSQL is widely used for both OLTP and analytical workloads.
Why it matters
PostgreSQL provides strong reliability and feature depth, making it suitable for enterprise applications, microservices, and complex data models. Its rich ecosystem and SQL compliance allow developers to build scalable, maintainable systems.
Examples
Using PostgreSQL to store customer records, track transactions, or support search features with full-text indexes. Lessons like SQL vs NoSQL Databases help compare relational engines.