| Caché | 2012.1 | 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. |
|---|
| ConceptBase | | 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 | 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 Database | 5.0 RC2 (Jan 2013) | C#.NET | SQL with object extensions, LINQ | .NET data types, classes. Supports dynamic types. | Commercial. free community edition | Distributed database designed for high volume, mission critical solutions. Includes built-in load balancing. Availability is guaranteed by fail over mechanisms and disaster recovery options. |
|---|
| Eloquera Database Community Edition | 5.0 (Jan 2013) | Native to C#.NET, VB.NET, C++.NET. Provided JSON agent for other environments such as Java, Ruby, Python | SQL with object extensions, LINQ | .NET data types, classes. Supports dynamic types. | 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. |
|---|
| Gemstone | | Smalltalk, Java | | | | |
|---|
| NeoDatis ODB | | C#, Java, Mono | | | LGPL | Embedded and Client/Server |
|---|
| ObjectDatabase++ | 3.4 | C++, TScript, .NET | | | Commercial / Free Development | Embedded |
|---|
| ObjectDB | 2.4.6 | Java | None, uses JPA or JDO | | Commercial with free limited download | |
|---|
| Objectivity/DB | 10.2.1 | 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. |
|---|
| ODABA | | C++, .NET | | | GPL | Terminology-oriented database |
|---|
| 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) | |
|---|
| 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. |
|---|
| Picolisp | 3.1.1 | Picolisp | | | MIT License (open source) | DB built into the language |
|---|
| Twig | | Java | | | Apache 2.0 (open source) | Built on Google App Engine's low-level Datastore API |
|---|
| Versant Object Database | | | | | | |
|---|
| Zope Object Database | | Python, C | No support. Object indexing and searching is done through ZCatalog facility. | | Zope Public License (open source) | |
|---|
