Editing Berkeley DB (section)

{{Short description|Software library providing embedded database for key/value data}}
{{Infobox software
| name = Berkeley DB
| logo =
| screenshot =
| caption = A transactional embedded data manager for un-typed data in basic key/value data structures
| collapsible =
| author = [[Margo Seltzer]] and [[Keith Bostic (software engineer)|Keith Bostic]] of [[Sleepycat Software]]
| developer = [[Sleepycat Software]], later [[Oracle Corporation]]
| released = {{Start date and age|1994}}
| latest release version = 18.1.40 <ref name="downloadpage">{{cite web |title=Oracle Berkeley DB Downloads |url=https://www.oracle.com/database/technologies/related/berkeleydb-downloads.html |access-date=27 September 2020}}</ref>
| latest release date    = {{Start date and age|2020|05|29|br=yes}}
| latest preview version =
| latest preview date =
| programming language = [[C (programming language)|C]]
| operating system = [[Microsoft Windows|Windows]], [[Unix-like]]
| platform =
| size = ~1244 [[Kilobyte|kB]] compiled on [[Microsoft Windows|Windows]] [[x86]]
| language =
| genre = [[Embedded database]], [[NoSQL|NoSQL Database]]
| license = [[Dual licensing|Dual licensed]] ([[GNU Affero General Public License]] and [[Proprietary software|proprietary license]]
| website = {{URL|https://www.oracle.com/database/technologies/related/berkeleydb.html}}
}}

'''Berkeley DB''' ('''BDB''') is an [[embedded database]] [[software]] [[Library (computing)|library]] for [[Key–value database|key/value]] data, historically significant in [[open-source software]]. Berkeley DB is written in [[C (programming language)|C]] with API bindings for many other [[programming language]]s. BDB stores arbitrary key/data pairs as byte arrays and supports multiple data items for a single key. Berkeley DB is not a [[relational database]],<ref>[http://doc.gnu-darwin.org/intro/dbisnot.html Berkeley DB Reference Guide: What is Berkeley DB not?]. Doc.gnu-darwin.org (2001-05-31). Retrieved on 2013-09-18.</ref> although it has database features including [[database transaction]]s, [[multiversion concurrency control]] and [[write-ahead logging]]. BDB runs on a wide variety of [[operating system]]s, including most [[Unix-like]] and [[Microsoft Windows|Windows]] systems, and [[real-time operating system]]s.

BDB was commercially supported and developed by [[Sleepycat Software]] from 1996 to 2006. Sleepycat Software was acquired by [[Oracle Corporation]] in February 2006, who continued to develop and sell the C Berkeley DB library. In 2013 Oracle re-licensed BDB under the [[AGPL 3|AGPL]] license<ref>{{Cite web |date=2013-06-10 |title=Major Release: Berkeley DB 12gR1 (12.1.6.0) |url=https://oss.oracle.com/pipermail/bdb/2013-June/000056.html |url-status=live |archive-url=https://web.archive.org/web/20131205045329/https://oss.oracle.com/pipermail/bdb/2013-June/000056.html |archive-date=2013-12-05 |access-date=2021-04-11 |website=Open Source Projects at Oracle}}</ref><ref>{{Cite web |last=Nathan |first=Willis |date=2013-07-10 |title=Debian, Berkeley DB, and AGPLv3 |url=https://lwn.net/Articles/557820/ |url-status=live |website=[[Linux Weekly News]] |archive-url=https://web.archive.org/web/20130722163022/http://lwn.net:80/Articles/557820/ |archive-date=2013-07-22 }}</ref> and released new versions until May 2020. [[Bloomberg L.P.]] continues to develop a [[Fork (software development)|fork]] of the 2013 version of BDB within their [[Comdb2]] database, under the original [[Sleepycat license|Sleepycat permissive license]].