|Original author(s)||Cloudscape Inc (Later IBM)|
|Developer(s)||Apache Software Foundation|
10.14.2.0 / May 3, 2018
|Type||Relational Database Management System|
|License||Apache License 2.0|
Apache Derby (previously distributed as IBM Cloudscape) is a relational database management system (RDBMS) developed by the Apache Software Foundation that can be embedded in Java programs and used for online transaction processing. It has a 3.5 MB disk-space footprint.
The Derby network server increases the reach of the Derby database engine by providing traditional client server functionality. The network server allows clients to connect over TCP/IP using the standard DRDA protocol. The network server allows the Derby engine to support networked JDBC, ODBC/CLI, Perl
An embedded database can be configured to act as a hybrid server/embedded RDBMS; to also accept TCP/IP connections from other clients in addition to clients in the same JVM.
Apache Derby originated at Cloudscape Inc, an Oakland, California, start-up founded in 1996 by Nat Wyatt and Howard Torf to develop Java database technology. The first release of the database engine, then called JBMS, was in 1997. Subsequently, the product was renamed Cloudscape and releases were made about every six months.
In 1999 Informix Software, Inc., acquired Cloudscape, Inc. In 2001 IBM acquired the database assets of Informix Software, including Cloudscape. The database engine was re-branded to IBM Cloudscape and releases continued, mainly focusing on embedded use with IBM's Java products and middleware.
In August 2004 IBM contributed the code to the Apache Software Foundation as Derby, an incubator project sponsored by the Apache DB project. In July 2005 the Derby project graduated from the Apache incubator and is now being developed as a sub-project of the DB Top Level Project at Apache. Prior to Derby's graduation from incubation, Sun joined the Derby project with an intent to use Derby as a component in their own products, and with the release of Java 6 in December 2006, Sun started packaging Derby in the JDK branded as Java DB.
In March 2007 IBM announced that they would withdraw marketing and support for the Cloudscape product, but would continue to contribute to the Apache Derby project.
The Java DB database is Oracle's supported distribution of Apache Derby.
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