PostgreSQL Global Development Group - (Freeware)
PostgreSQL is a good choice when it comes to object-relational database management system, being one of the strongest competitors for Microsoft SQL Server, Firebird, Oracle, Sybase.
PostgreSQL for Windows is a software for managing relational database and Ordbms objects that will run on your operating system. It is recognized worldwide for its stability and its programming possibilities particularly extensive in the engine of your database using the PL / pgSQL.
PostgreSQL is the main competitor for MySQL, Firebird, Oracle, Sybase or Microsoft SQL Server and it is fully ACID compliant and has support for foreign keys, joins, views, triggers, and stored procedures. It also includes the windowing functions, common table expressions and recursive joins a parallel restore, consolidated hash indexes, support for SSL certificates for user authentication, routines statistics function, etc.It allows to manage tables, libraries for many languages to access records from programs written in Java (JDBC), C + + / C, Perl or Tcl / Tk.ODBC API allows any application that supports this type of interface to access PostgreSQL databases.
PostgreSQL is highly customizable running stored procedures in more than a dozen programming languages, including Java, Perl, Python, Ruby, Tcl, C/C++,and its own PL/pgSQL, which is similar to Oracle's PL/SQL.
# Changes
* Fix persistence marking of shared buffers during WAL replay
* Fix possible incorrect sorting of output from queries involving WHERE indexed_column IN (list_of_values)
* Fix planner failure for queries involving GROUP BY expressions along with window functions and aggregates
* Fix planner's assignment of executor parameters
* Improve planner's handling of join conditions in index scans
* Improve selectivity estimation for text search queries involving prefixes, i.e. word:* patterns
* Fix delayed recognition of permissions changes
* Fix ANALYZE to not fail when a column is a domain over an array type
* Prevent PL/Perl from crashing if a recursive PL/Perl function is redefined while being executed
* Work around possible misoptimization in PL/Perl
* Remove unnecessary dependency on pg_config from pg_upgrade
* Update time zone data files to tzdata release 2012f for DST law changes in Fiji