Editing HSQLDB (section)

{{short description|Java-based database engine}}
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{{Infobox software
| name                   = HSQLDB (HyperSQL DataBase)
| logo                   =
| screenshot             = Hsql.png
| caption                = HSQL Database Manager
| collapsible            =
| developer              =
| released               = {{Start date and age|2001}}
| latest release version = {{wikidata|property|Q669257|P348}}
| latest release date    = {{start date and age|{{wikidata|qualifier|Q669257|P348|P577}}}}
| latest preview version =
| latest preview date    = 
| size                   = 10.8&nbsp;MB (2.6.0 ZIP file)<ref>{{cite web|url=https://sourceforge.net/projects/hsqldb/files/hsqldb/hsqldb_2_6/|title=Home / hsqldb / hsqldb_2_6|work=HyperSQL Database Engine (HSQLDB)|publisher=SourceForge|date=21 March 2021|access-date=1 April 2021}}</ref>
| operating system       = [[Cross-platform]]
| programming language   = [[Java (programming language)|Java]]
| genre                  = [[Relational database management system|RDBMS]]
| license                = [[BSD licenses|BSD]]
}}
'''HSQLDB''' ('''''H'''yper '''SQL''' '''D'''ata'''b'''ase'') is a [[relational database management system]] written in [[Java (programming language)|Java]]. It has a [[JDBC driver]] and supports a large subset of [[SQL-92]], [[SQL:2008]], [[SQL:2011]], and [[SQL:2016]] standards.<ref>{{cite web | title=HSQLDB SQL Syntax | publisher=hsqldb.org | url=http://hsqldb.org/doc/2.0/guide/sqlgeneral-chapt.html}}</ref> It offers a fast,<ref>{{cite web | title=PolePosition Performance Comparison | publisher=polepos.org | url=http://polepos.sourceforge.net/results/html/index.html}}</ref> small (around 1300 kilobytes in version 2.2) [[database engine]] which offers both [[In-memory database|in-memory]] and disk-based tables. Both embedded and server modes are available.

Additionally, it includes tools such as a minimal [[Web server]], command line and GUI management tools (can be run as applets), and a number of demonstration examples. It can run on Java runtimes from version 1.1 upwards, including [[free Java implementations]] such as [[Kaffe]].

HSQLDB is available under a [[BSD licenses|BSD license]]. It is used as a database and persistence engine in many [[open-source software|open source]] software projects, such as descendants of [[OpenOffice.org Base]] (i.e., [[Apache OpenOffice Base]], [[LibreOffice Base]], etc.), and the [[Jitsi]] VoIP and video-conference client since version 2.6.<ref>{{cite web |url=https://download.jitsi.org/jitsi/windows/updates/ |title=Jitsi build 5390 release notes |publisher=Jitsi.org |access-date=2015-02-01 |archive-date=2015-02-02 |archive-url=https://web.archive.org/web/20150202001841/https://download.jitsi.org/jitsi/windows/updates/ |url-status=dead }}</ref> It is also used in commercial products, such as [[Mathematica]] and InstallAnywhere (starting with version 8.0).<ref>{{cite web | title=Software using HSQLDB |publisher=hsqldb.org | url=http://hsqldb.org/web/hsqlUsing.html }}</ref>