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Berkeley DB

Berkeley DB (DB) is a high-performance, embedded database library with C, C++, Java, Perl, Python, Tcl and many other language bindings. DB stores arbitrary key/data pairs, and supports multiple data items for a single key. DB can support thousands of simultaneous threads of control manipulating databases as large as 256 terabytes, on a wide variety of systems including most UNIX-like and Windows systems.

Despite having a simple architecture it supports many advanced database features such as ACID transactions, fine-grained locking, an XA interface, hot backups and replication.

Berkeley DB is the underlying storage system of several commercial LDAP servers, the MySQL database system, and many other commercial and Open Source applications.

Berkeley DB is developed by Sleepycat Software[?]. It is available with source code under a modified BSD-style Free software license. Developers who want to redistribute DB with proprietary applications must license it from Sleepycat.

Berkeley DB includes compatibility interfaces for some historic UNIX database libraries: dbm[?], ndbm[?] and hsearch[?].

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