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{{Short description|
[[File:Object-Oriented Model.svg|thumb|320px|Example of an object-oriented model<ref name="USDT01">[http://knowledge.fhwa.dot.gov/tam/aashto.nsf/All+Documents/4825476B2B5C687285256B1F00544258/$FILE/DIGloss.pdf Data Integration Glossary] {{webarchive |url=https://web.archive.org/web/20090320001015/http://knowledge.fhwa.dot.gov/tam/aashto.nsf/All+Documents/4825476B2B5C687285256B1F00544258/$FILE/DIGloss.pdf |date=March 20, 2009 }}, U.S. Department of Transportation, August 2001.</ref>]]
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Object database management systems added the concept of [[persistence (computer science)|persistence]] to object programming languages. The early commercial products were integrated with various languages: GemStone ([[Smalltalk]]), Gbase ([[LISP programming language|LISP]]), Vbase ([[C Object Processor|COP]]) and VOSS (Virtual Object Storage System for [[Smalltalk]]). For much of the 1990s, [[C++]] dominated the commercial object database management market. Vendors added [[Java programming language|Java]] in the late 1990s and more recently, [[C Sharp (programming language)|C#]].
Starting in 2004, object databases have seen a second growth period when [[Open-source software|open source]] object databases emerged that were widely affordable and easy to use, because they are entirely written in [[Object-oriented programming|OOP]] languages like Smalltalk, Java, or C#, such as Versant's [[db4o]] (db4objects), DTS/S1 from Obsidian Dynamics and [[Perst]] (McObject), available under dual [[Open-source license|open source]] and commercial licensing.
==Timeline==
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==External links==
* [http://www.odbms.org/ Object DBMS resource portal]
* [http://db-engines.com/en/ranking/object+oriented+dbms Ranking of Object Oriented DBMS] {{Webarchive|url=https://web.archive.org/web/20241201172721/https://db-engines.com/en/ranking/object%2Boriented%2Bdbms |date=2024-12-01 }} - by popularity, updated monthly from [[DB-Engines ranking|DB-Engines]]
{{Database models}}
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