PostgreSQL is a robust relational database system with over 25 years of active development that runs on all major operating systems. It is fully ACID compliant, and has full support for foreign keys, joins, views, triggers, and stored procedures (in multiple languages). It includes most SQL92 and SQL99 data types, including INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and TIMESTAMP. It also supports storage of binary large objects, including pictures, sounds, or video. It has native programming interfaces for C/C++, Java, .Net, Perl, Python, Ruby, Tcl, and ODBC, among others, and exceptional documentation.
Berkeley DB (libdb) is a programmatic toolkit that provides embedded database support for both traditional and client/server applications. It includes b+tree, queue, extended linear hashing, fixed, and variable-length record access methods, transactions, locking, logging, shared memory caching, database recovery, and replication for highly available systems. DB supports C, C++, C#, Java, PHP, and Perl APIs. It supports key-value pair (NoSQL), SQL, and Java Object formatted data. It is available for a wide variety of Unix platforms as well as QNX, Android, Mac OS X, and several varieties of Windows.
Barman (backup and recovery manager) for PostgreSQL is an administration tool for disaster recovery of PostgreSQL servers. It allows remote backups of multiple servers in business-critical environments and helps DBAs during the recovery phase. Barman's most-wanted features include backup catalogs, retention policies, remote recovery, archiving, and compression of WAL files and backups.
Libzdb is a database library with thread-safe connection pooling. The library can connect transparently to multiple database systems. It has zero runtime configuration and connections are specified via a URL scheme. A modern object-oriented API is provided. Libzdb supports MySQL, PostgreSQL, SQLite, and Oracle.
pgAdmin III is an administration and management tool for the PostgreSQL database and derivative products such as EnterpriseDB, Mammoth PostgreSQL, Pervasive Postgres, and SRA PowerGres. It includes a graphical administration interface, an SQL query tool with grahical EXPLAIN, a procedural code editor, an SQL/shell/batch scheduling agent, Slony-I management, and much more. It is designed to answer the needs of most users, from writing simple SQL queries to developing complex databases. The graphical interface supports all PostgreSQL features and makes administration easy.
GTKtalog is an archiver to store a CD file tree structure. It can be used to easily browse a CD-ROM database. Each disk, folder and file has a size, date, category, description, and content parameter and can be completely edited or deleted. The file search module can do searches on filename, foldername with name, category description, date, filesize, and content parameter. Each filetype has its own icon. It possible to use programs like tar, arj, zip, or scripts to extract information from files to include in the database. Gtktalog can mount, scan, umount, and eject a CD-ROM in the background.