POSTGRESQL is an object-relational database developed on the Internet by a group of developers spread across the globe. It is an open-source alternative to commercial databases like Oracle and Informix. This article discusses the concepts needed to write applications using POSTGRESQL. It covers the purpose of databases and how to communicate with them from applications.

Table of Contents
Who Is the Intended Audience?
Structure of This Book
Platform and Version Used
What Is Included on the CD?
Conventions Used in This Book
Acknowledgments
Comments and Questions

PostgreSQL is one of the most successful open source databases available. It is arguably also the most advanced, with a wide range of features that challenge even many closed-source databases.

POSTGRESQL is an object-relational database developed on the Internet by a group of developers spread across the globe. It is an open-source alternative to commercial databases like Oracle and Informix.