This is a comparison of notable object database management systems, showing what fundamental object database features are implemented natively.
NameCurrent Stable Version Language(s) SQL support Datatypes License Description Caché2017.2.1 Caché ObjectScript (dynamic language), Basic. Java/.NET object mapping supported. SQL subset. Object notation allowed. Supports embedded SQL, dynamic SQL and xDBC access. Proprietary MUMPS ancestry. Includes built-in support for XML, Web/AJAX and an EMB system called Ensemble. Supports embedded, client/server and distributed implementations. ConceptBase 8.1.13(2019-12-09) Telos CBQL (based on Datalog) no types but classes open source, FreeBSD-style license historical db, active rules, meta-modeling, deductive rules Db4o 8.0(2011-03-09) C#, Java db4o-sql .NET and Java data types GPL, custom, proprietary Native Queries, LINQ support, automatic schema evolution, Transparent Activation/Persistence, replication to RDBMS, Object Manager plugin for Visual Studio and Eclipse GemStone/S 3.7.4.3(2025-07-22) Smalltalk None Objects and code Proprietary, free version available Persistent, transactional, multi-user Smalltalk developed by GemTalk Systems. ObjectDatabase++ 4.4(2015-07-03) C++, TScript Proprietary Embedded ObjectDB 2.4.6 Java None, uses JPA or JDO Proprietary Objectivity/DB 10.2.1 C++, C#, Java, Python, Smalltalk and XML SQL superset Proprietary Distributed, Parallel Query Engine ObjectStore 7.2(July 2011) C++, Java, interoperable with .NET SQL subset (also has own object query language) Proprietary Embedded database supporting efficient, distributed management of C++ and Java objects. Avoids the complexities and limitations of ORM products such as Hibernate by storing objects directly with their relationships intact. Uses a page-based mapping system for fast locking and efficient, distributed, client-side caching. ODABA 12.3.0(August 2013) C++, .NET SQL subset, DQL Basic Types, Classes, Multiple inheritance, Weak Typed GPL Terminology-oriented database OpenAccess 2.2 C++ no Proprietary EDA database OpenLink Virtuoso (Virtuoso Universal Server) 7.2.7 (May 2022) C++, Java/JSP, ASP, ASPX, Mono, RDF, SPARQL, SPARUL, SQL, Perl, Python, PHP, Ruby, XML, ODBC, JDBC, ADO.NET, more SQL 9x/200x GPL or proprietary Perst Java: 4.38 (2015-03-18) C#: 4.46 (2014-08-23) Java (including Java SE, Java ME & Android), C# (including .NET, .NET Compact Framework, Mono & Silverlight) JSQL – object-oriented subset of SQL Java and .NET data types GPL, Proprietary Small footprint embedded database. Diverse indexes and specialized collection classes; LINQ; replication; ACID transactions; native full text search; includes Silverlight, Android and Java ME demo apps. Picolisp 3.1.1 Picolisp MIT License DB built into the language Versant Object Database / VOD / FastObjects 10 (2021) / 9 (2015) / 14 (2020) C++ / Java / C# OQL (ODMG 3.0)Proprietary Zope Object Database Python, C No support. Object indexing and searching is done through ZCatalog facility. Zope Public License
See also Comparison of object–relational database management systems Comparison of relational database management systems Object–relational database
References
External links ObjectFile at GitHub