DBM (computing): Difference between revisions

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The original AT&T ''dbm'' library has been replaced by its many successor implementations. Notable examples include:<ref name="2001-ladd-odonell-xhtml"/>

* ''ndbm'' ("new dbm"), based on the original dbm with some new features.

* [https://www.gnu.org.ua/softwares/gdbm/gdbm.html GDBM] ("GNU dbm"), [[GNU]] rewrite of the library implementing ''ndbm'' features and its own interface. Also provides new features like crash tolerance for guaranteeing data consistency.<ref>{{cite web |title=Crash Tolerance |website=GDBM manual |url=https://www.gnu.org.ua/software/gdbm/manual/Crash-Tolerance.html |access-date=3 October 2021}}</ref><ref>{{cite web |title=Crashproofing the Original NoSQL Key-Value Store |url=https://queue.acm.org/detail.cfm?id=3487353 |access-date=3 October 2021}}</ref>

* ''sdbm'' ("small dbm"), a [[public ___domain]] rewrite of ''dbm''. It is a part of the standard distribution for [[Perl]] and is available as an external library for [[Ruby_(programming_language)|Ruby]].<ref>{{cite web |last1=yigit |first1=ozan |title=sdbm.bun |website=cse.yorku.ca |url=http://www.cse.yorku.ca/~oz/sdbm.bun |access-date=8 May 2019}}</ref><ref>{{cite web |title=Ruby SDBM library |website=SDBM on Github |url=https://github.com/ruby/sdbm |quote=Note that Ruby used to ship SDBM in the standard distribution up until version 2.7, after which it was made available only as an external library, similarly to the DBM and GDBM libraries, removed from the standard library in Ruby 3.1.}}</ref>

* ''qdbm'' ("Quick Database Manager"), a higher-performance ''dbm'' employing many of the same techniques as Tokyo/Kyoto Cabinet. Written by the same author before they moved on to the cabinets.<ref>{{cite web |date=2006 |title=QDBM: Quick Database Manager |website=fallabs.com |url=https://fallabs.com/qdbm/ |access-date=2020-02-27 |archive-date=2020-02-27 |archive-url=https://web.archive.org/web/20200227064151/https://fallabs.com/qdbm/ |url-status=dead }}</ref>

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== See also ==

* [[Ordered Key-Value Store]]

* [[Embedded database]]

* [[Flat file database]]

* [[ISAM]]

* [[Key-valueKey–value database]]

* [[Mobile database]]

* [[NoSQL]]