PostgreSQL is an excellent open-source database control system, that has been growing in popularity lately because of its stability and dependability. It offers plenty of advanced features and it can be used to store any sort of information. PostgreSQL could be interfaced with many different programming languages, including PHP, Python, Perl, Java, C++, Ruby, etc. Furthermore, it can be used for scalable apps due to the fact that a single field inside a PostgreSQL database could be up to 1 GB, a table - up to 32 Gigabytes, while the database in general does not have a limit for its total size. PostgreSQL also performs more quickly than other SQL control systems when complex operations are performed. Lots of large companies and institutions have already switched to PostgreSQL for their web sites or products - Apple, Cisco, the US State Department, the University of California, Berkeley, and many more.