Berkeley DB (libdb) is a programmatic toolkit that provides embedded database support for both traditional and client/server applications. Berkeley DB 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.Berkeley DB delivers the core data management functionality, power, scalability and flexibility of enterprise relational databases but without the overhead of a query processing layer. Combined with the stability and lower support cost of open source code, Berkeley DB offers many advantagesDB supports C, C++, Java, PHP, and Perl APIs. It is available for a wide variety of UNIX platforms as well as Windows XP, Windows NT, and Windows \'95 (MSVC 6 and 7).Sleepycat Software makes Berkeley DB, the most widely used open source developer database in the world with over 200 million deployments. Customers such as Amazon.com, AOL, British Telecom, Cisco Systems, EMC, Google, Hitachi, HP, Motorola, RSA Security, Sun Microsystems, TIBCO and VERITAS also rely on Berkeley DB for fast, scalable, reliable and cost-effective data management for their mission-critical applications. Profitable since it was founded in 1996, Sleepycat is a privately held company with offices in California, Massachusetts and the United Kingdom.Here are the advantajes of \"Berkeley DB\":