PostgreSQL is an innovative relational database management system, which you can use on many platforms (UNIX, Linux, FreeBSD, OpenSolaris, Windows) and with many different scripting languages (Perl, PHP, Python, Java, Ruby). Due to the fact that it is open-source, it could be freely modified to suit the requirements of any developer who employs it. PostgreSQL is also among the most trusted and stable database systems, with far better performance in handling complicated procedures compared with similar systems. It is appropriate for large-scale apps because a single PostgreSQL database does not have a limit for the size, while one table could be up to 32 GB. It isn't surprising that a lot of business, academic and governmental entities are already using PostgreSQL - Skype, the University of California, Berkeley and the US Department of Labor being just a few examples.