PostgreSQL: The world's most advanced open source database
1 day ago · PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature …
Downloads - PostgreSQL
Sep 25, 2025 · PostgreSQL is available for download as ready-to-use packages or installers for various platforms, as well as a source code archive if you want to build it yourself.
Windows installers - PostgreSQL
Sep 25, 2025 · StackBuilder, a package manager for downloading and installing additional PostgreSQL tools and drivers. Stackbuilder includes management, integration, migration, …
About - PostgreSQL
Sep 25, 2025 · PostgreSQL is a powerful, open source object-relational database system that uses and extends the SQL language combined with many features that safely store and scale …
PostgreSQL 18.0 Documentation
Sep 25, 2025 · Preface 1. What Is PostgreSQL? 2. A Brief History of PostgreSQL 3. Conventions 4. Further Information 5. Bug Reporting Guidelines I. Tutorial 1. Getting Started 2. The SQL …
PostgreSQL: Documentation: 18: Part I. Tutorial
Sep 25, 2025 · The tutorial is intended to give an introduction to PostgreSQL, relational database concepts, and the SQL language. We assume some general knowledge about how to use …
PostgreSQL: Documentation: 18: 1. What Is PostgreSQL?
Sep 25, 2025 · PostgreSQL is an object-relational database management system (ORDBMS) based on POSTGRES, Version 4.2, developed at the University of California at Berkeley …
Tutorials & Other Resources - PostgreSQL
Sep 25, 2025 · PostgreSQL: Tutorials & Other ResourcesTutorials & Other Resources
9.2. Comparison Functions and Operators - PostgreSQL
Sep 25, 2025 · If it is enabled, PostgreSQL will convert x = NULL clauses to x IS NULL. If the expression is row-valued, then IS NULL is true when the row expression itself is null or when …
PostgreSQL: Documentation: 18: 1.1. Installation
Sep 25, 2025 · PostgreSQL can be installed by any unprivileged user; no superuser (root) access is required. If you are installing PostgreSQL yourself, then refer to Chapter 17 for instructions …