The chapter PostgreSQL Tutorials demonstrate about PostgreSQL which is said to be an uttermost developed software and these PostgreSQL is very easily accessible and is a free source database application software. PostgreSQL is an object relational database management system(ORDBMS) and is a cross platform database that work on all the different types of operating system such as Linux, FreeBSD, Solaris, Microsoft Windows, Mac OS X(starting with OS X 10.7 Lion). PostgreSQL is scattered concealed by the license comparable to MIT and BSD. Essentially, it permits the clients for performing any number of action based on the cryptography, that includes exchanging multiples externally beyond the code source. The main limitations are that it will doesn't dominantly operate it for lawfully on the risks for issues that contends with the products. There is additionally contain the necessity which are related to the copyright that display in each and every software that are duplicated.

PostgreSQL is evolved from Ingres project at university of California, Berkeley. These Ingres team leader was Michael stone braker and perform the operations on post-Ingres project and in the year 1988 the first prototype of the product was developed. In the year 1994 Michael replaced Ingres Based Quel Query Language interpreter to SQL Language Interpreter. And in the year 1996 these SQL Query Language interpreter was renamed as PostgreSQL Database and in the year 1997 the first PostgreSQL edition was released and developer community has never accepted this new name as PostgreSQL.

• PostgreSQL Tutorials - PostgreSQL is a database that is accessible publicly.
• PostgreSQL Tutorials - PostgreSQL supports four standard procedural languages PL/Python, PL/Tcl, PL/pgSQL, PL/Perl.
• PostgreSQL Tutorials - PostgreSQL is an ORDBMS (object-relational database management system).