PostgreSQL is rapidly on its way to becoming the most successful open source relational database system. It has had an explosive growth, from its roots in academia, to the Internet, through the efforts of a talented hard-working worldwide development team. The vast array of enterprise businesses migrating to PostgreSQL from proprietary databases are stark evidence for its success to come. This book is a complete tutorial on PostgreSQL features and functions beginning with the basics and building up to the design and construction of databases and integrating them with programming languages for the Web. It shows you how to make the most of this fully programmable databases' powerful features like aggregate, join, transaction, inheritance, embedding your own C routines and more.