Object database

As the usage of web-based technology increases with the implementation of Intranets and extranets, companies have a vested interest in OODBMSs to display their complex data.

These included ITASCA (Itasca Systems), Jasmine (Fujitsu, marketed by Computer Associates), Matisse (Matisse Software), Objectivity/DB (Objectivity, Inc.), ObjectStore (Progress Software, acquired from eXcelon which was originally Object Design, Incorporated), ONTOS (Ontos, Inc., name changed from Ontologic), O2[6] (O2 Technology, merged with several companies, acquired by Informix, which was in turn acquired by IBM), POET (now FastObjects from Versant which acquired Poet Software), Versant Object Database (Versant Corporation), VOSS (Logic Arts) and JADE (Jade Software Corporation).

Starting in 2004, object databases have seen a second growth period when open source object databases emerged that were widely affordable and easy to use, because they are entirely written in 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 and commercial licensing.

[14] Another group of object databases focuses on embedded use in devices, packaged software, and real-time systems.

Multimedia applications are facilitated because the class methods associated with the data are responsible for its correct interpretation.

Its goal was to create a set of specifications that would allow for portable applications that store objects in database management systems.

By 2001, most of the major object database and object–relational mapping vendors claimed conformance to the ODMG Java Language Binding.

The ODMG member companies then decided to concentrate their efforts on the Java Data Objects specification.

The ODBT WG planned to create a set of standards that would incorporate advances in object database technology (e.g., replication), data management (e.g., spatial indexing), and data formats (e.g., XML) and to include new features into these standards that support domains where object databases are being adopted (e.g., real-time systems).

The work of the ODBT WG was suspended in March 2009 when, subsequent to the economic turmoil in late 2008, the ODB vendors involved in this effort decided to focus their resources elsewhere.

In January 2007 the World Wide Web Consortium gave final recommendation status to the XQuery language.

XQuery v1 and XPath v2 and later are powerful and are available in both open source and libre (FOSS) software,[15][16][17] as well as in commercial systems.

Since the early 2000s JSON has gained community adoption and popularity in applications where developers are in control of the data format.

In this context, the main strategy of OODBMS maintainers was to retrofit JSON to their databases (by using it as the internal data type).

In January 2016, with the PostgreSQL 9.5 release[18] was the first FOSS OODBMS to offer an efficient JSON internal datatype (JSONB) with a complete set of functions and operations, for all basic relational and non-relational manipulations.