PostgreSQL is an excellent open-source database management system, which has been growing in global recognition lately as a result of its stability and reliability. It provides plenty of advanced functions and it can be used to save any sort of info. PostgreSQL could be interfaced with many programming languages, such as PHP, Python, Perl, Java, C++, Ruby, and so forth. Also, it can be used for scalable apps due to the fact that a single field in a PostgreSQL database can 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 administration systems when complex operations are executed. A lot of big companies and institutions have already migrated to PostgreSQL for their web sites or products - Apple, Cisco, the US State Department, the University of California, Berkeley, and many others.