The PostgreSQL Global Development Group created PostgreSQL, a well-known open-source database management system. Various operating systems, such as Windows, Linux, and MacOS, can be used with RDBMS PostgreSQL. PostgreSQL supports complex data types like JSON and XML, transactions and locking, distributed programming, stored procedure processing, and triggers. It also has strong security features that work with both low-level programming languages like SQL and high-level languages like Python, Perl, and C++. Web applications and large-scale businesses use PostgreSQL extensively.