PostgreSQL is an innovative relational database control system, that you can use on many different platforms (UNIX, Linux, FreeBSD, OpenSolaris, Windows) and with many different scripting languages (Perl, PHP, Python, Java, Ruby). As it is open-source, it could be effortlessly modified to match the needs of any developer who uses it. PostgreSQL is also amongst the the most reliable and secure database systems, with a lot better efficiency in handling complicated operations compared with similar systems. It's ideal for large-scale applications because a single PostgreSQL database does not have a limit for the size, while an individual table may be up to 32 GB. It is not surprising that a number of business, academic and governmental entities are already working with PostgreSQL - Skype, the University of California, Berkeley and the US Department of Labor being only a couple of examples.