Comparison of object database management systems

This is a comparison of notable object database management systems, showing what fundamental object database features are implemented natively.

Name Current Stable Version Language(s) SQL support Datatypes License Description
Caché 2017.2.1 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,[1] proprietary Native Queries, LINQ support, automatic schema evolution, Transparent Activation/Persistence, replication to RDBMS, Object Manager plugin for Visual Studio and Eclipse
GemStone/S 3.6.0 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
ObjectFile 4.14 C++, XML None Objects, References, BLOB's, C types. MIT License Very fast loading. Full source code for easy porting and debugging. Database versioning supported. Byte order conversion supported for cross-platform support. Memory efficient. Objects can be in or out of memory. Binary Large Object (BLOB) support.XML object and full database representation can be generated. Import and export objects from xml. Proven in a large desktop application. Small footprint. Database files can be small or very large.Cross-platform and portable. Portable file format. Open source and free to use.
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 7.2.5.1 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 / JPA / FastObjects 9.1 / 3.0 / 12.0
(2015-10-21)		 C++ / Java / C# OQL (ODMG 3.0) Proprietary
WakandaDB 4 JavaScript, C++ No support. REST and SSJS can be used instead. JavaScript and 4D data types AGPL, proprietary[2] NoSQL REST / Server-Side JavaScript engine. Integrates Webkit JavaScriptCore engine with HTML5 JS APIs supported on the server. Tables and columns are replaced by JavaScript DataClasses and attributes.
Zope Object Database Python, C No support. Object indexing and searching is done through ZCatalog facility. Zope Public License

See also

References
  1. "Db4o :: Java & .NET Object Database :: Db4o Opensource Compatibility License (DOCL)". Archived from the original on 2009-09-28. Retrieved 2009-06-10.
  2. "Wakanda Commercial license". Archived from the original on 2013-02-18. Retrieved 2013-05-14.
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