Comparison of object database management systems

Features

Information about what fundamental ODBMS features are implemented natively.

Name	Current Stable Version	Language(s)	SQL support	Datatypes	License	Description
Caché	2010.1.4	ObjectScript (dynamic language), Basic. Java/.NET object mapping supported.	SQL subset. Object notation allowed. Supports embedded SQL, dynamic SQL and xDBC access.		Commercial	MUMPS ancestry. Includes built-in support for XML, Web/AJAX and an EMB system called Ensemble. Supports embedded, client/server and distributed implementations.
Cerebrum		Win32, .NET C# as script language			Freeware, AS IS, .NET portion - open source, Win32 portion - closed source	Object oriented graph database with active server, Intended to be used for artificial intelligence, neural network & natural language processing
ConceptBase		Telos	CBQL (based on Datalog)	no types but classes	closed source, free for non-commercial use	historical db, active rules, meta modeling, deductive rules
Databeans	2.1	Java	No, native queries	Java data types	GPL	Fully object oriented persistence framework for java. Client/server, transactional, with GC, persistent Collections, XML export/import, security
Db4o	8.0	C#, Java	db4o-sql	.NET and Java data types	GPL, Commercial	Native Queries, LINQ support, automatic schema evolution, Transparent Activation/Persistence, replication to RDBMS, Object Manager plugin for Visual Studio and Eclipse
Eloquera	4.14	C#, .NET. Provided JSON agent for other environments such as Java, Ruby, Python	SQL with object extensions, LINQ	.NET data types, classes	Free for Commercial use, Commercial Support, Closed Source	SQL and LINQ queries. Client/Server, desktop modes. In-memory mode support. Schema free design. Functionality of object-oriented and document-oriented databases. SNMP monitoring, control and profiling. Supports JOIN queries. Stored procedures. CLR types evolution.
Facets (previously known as GemStone-J)
FastDB Main Memory DBMS		C++	Subset		Open Source. AS IS
Gemstone
Generic Object Oriented Database System (GOODS)		C++, Java, Perl, Squeak Smalltalk			Open source, AS IS	distributed
GigaBASE Database Management System		C, C++, C#, Java, PHP, Perl	SQL "like"		MIT	Based on FastDB Main Memory DBMS.
Haley Systems
Jasmine Object Database
JDOInstruments		Java	No, JDOQL		LGPL	Embedded , JDO implementation
JODB (Java Objects Database)		Java			GPL
JOOB		C#, Iron Python, VB.NET	SQL Queries through Relational Views	Object Classes	Commercial	Fully object oriented persistence framework for .NET, Automatic schema evolution, Object Manager plugin for Visual Studio, Nodal architecture, Solution frameworks, Analytics
KiokuDB	0.33	Perl	SQL and/or GIN indexing, depending on the backend	Perl classes	Artistic, Open Source	KiokuDB allows to transparently persist arbitrarily complex object graphs. It supports several backends (PostgreSQL, MySQL, SQLite, BerkeleyDB, filesystem and more)
Magma Object Database		Smalltalk			Open Source
Matisse	8	Java, C#, C++, VB, Delphi, Eiffel, Smalltalk, Perl, Python and PHP	SQL99		Commercial	.NET Platform Integration. Used in nuclear power plants. Schema can be changed during processing (no down time).
MyOODB		Java			GPL/LGPL	Distributed Object Framework / Object Oriented Database
NeoDatis ODB		C#, Java, Mono			LGPL	Embedded and Client/Server
ObjectDB		Java	No, JDOQL		Commercial
Objectivity/DB		C++, C#, Java, Python, Smalltalk and XML	SQL superset		Commercial	Distributed, Parallel Query Engine
ObjectStore	7.2 (July 2011)	C++, Java, interoperable with .NET	SQL subset (also has own object query language)		Commercial	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.
OpenAccess	2.2	C++	no		Commercial	EDA database
OpenLink Virtuoso	5.0.11	C++, Java/JSP, ASP, ASPX, Mono, RDF, SPARQL, SPARUL, SQL, Perl, Python, PHP, Ruby, XML, ODBC, JDBC, ADO.NET, more	SQL 9x/200x		Open Source Edition = GPL; Closed-Source Edition = Commercial (customer choice, dependent on feature set)
Orient ODBMS (software)		C++, Java	SQL subset		Apache 2.0 license
Ozone Database Project		Java			GPL, LGPL, additions
Perst	4.2	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, Commercial	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.
siaqodb	3.0	C#, .NET, Mono, Silverlight, Windows Phone 7, Android, iOS, Unity3D,.NET Compact Framework	LINQ	.NET data types, classes	Commercial	object database for .NET,Mono and Silverlight that runs on iOS through MonoTouch, on Android through MonoDroid, WindowsPhone7, Unity3D,Compact Framework
Statice		LISP				introduction
stSoftware ODBMS		Java	SQL subset		Commercial
VelocityDB	1.0.1	C#, .NET,	LINQ	.NET data types	Commercial	Easy to use, extremely high performance, scalable (Yottabyte and trillions of objects), embeddable and distributable with a small footprint (~ 300K). This pure C# implemented system supports page/database level optimistic/pessimistic locking, page compression and encryption with automatic recovery and database backup
Versant Object Database	8.0	C++, Java	SQL support through ODBC/JDBC bridge. Native query called VQL similar to SQL with extensions for path based queries through an object graph.	Object Classes, C++ STL, Java	Commercial	Distributed, parallel processing object database. Commonly used in extreme scale (concurrent users and amount of data) OLTP type of applications. Key use in HPC, Real-time analytics and simulation, deep graph analysis, complex modeling.
VOSS (Virtual Object Storage System)		Smalltalk	No SQL. Queries are in Smalltalk, using query-building methods in multi-key / multi-value / key-set DictionarySet with set intersection and union.	Smalltalk classes except Blocks	Open Source and/or commercial	Distributed objects. Historical versioning for MVRC/MVCC. Long Transactions. Background garbage-collection. Webserver / Application process rendezvous. Rollforward crash recovery.
Zope Object Database		Python	No support. Object indexing and searching is done through ZCatalog facility.		ZPL, Open Source
HSS Database	1.0	C#, .NET, Silverlight, Windows Phone 7	LINQ	.NET data types, classes	Commercial	object database management system for .NET, Silverlight and Windows Phone 7 with support for custom primary keys, no OID required. Extremely fast and super easy to use.
JOAFIP object persistence in file	2.1.0	Java	No support. 100% Java object relational.	java object	LGPL, Open Source	No query language, all is done using object navigation. Make able to create a 100% JAVA database