PostgreSQL: The Most Advanced Open Source Database Software
PostgreSQL is a self-confessed most advanced open source database software. It is also known as a powerful open source object-relational database system with over 15 years of proven architecture and active development that has earned a strong reputation for correctness, data integrity, and reliability. This free database works on a wide variety of OS like Windows, UNIX, and Linux.
An enterprise class free database, PostgreSQL boasts of a wide variety of features ranging from write ahead logging for fault tolerance, a sophisticated optimizer/query planner, hot or online backups, nested transactions, asynchronous replication, tablespaces, point in time recovery, and multi-version currency control. Here are more features of this open source database software:
- Highly customizable – It runs stored processes in more than a dozen programming languages such as C/C++, Tcl, Ruby, Python, Perl, Java and its very own pgSQL/PL which is the same with Oracle’s SQL/PL. Also incorporated within its standard function library are dozens of inbuilt functions that vary from Oracle compatibility, cryptography, a string of operations to as simple as basic math.
- Standards Compliant and Feature-Filled – this free database software pride itself in standard compliance with conformity to the ANSI-SQL:2008 standard. It has full support for serializable isolation levels, read-committed, and subqueries.
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