https://github.com/h2database/h2database

H2 is an embeddable RDBMS written in Java.
https://github.com/h2database/h2database

database java jdbc sql

Last synced: 5 days ago
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H2 is an embeddable RDBMS written in Java.

• Host: GitHub
• URL: https://github.com/h2database/h2database
• Owner: h2database
• License: other
• Created: 2015-04-10T19:09:09.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2025-02-17T20:22:49.000Z (about 2 months ago)
• Last Synced: 2025-04-09T22:00:48.489Z (5 days ago)
• Topics: database, java, jdbc, sql
• Language: Java
• Homepage: https://h2database.com
• Size: 85.9 MB
• Stars: 4,329
• Watchers: 134
• Forks: 1,238
• Open Issues: 394
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
[![CI](h2/src/docsrc/images/h2-logo-2.png)](https://github.com/h2database/h2database/actions?query=workflow%3ACI)

# Welcome to H2, the Java SQL database.

## The main features of H2 are:

* Very fast, open source, JDBC API

* Embedded and server modes; disk-based or in-memory databases

* Transaction support, multi-version concurrency

* Browser based Console application

* Encrypted databases

* Fulltext search

* Pure Java with small footprint: around 2.5 MB jar file size

* ODBC driver

More information: https://h2database.com

## Downloads

[Download latest version](https://h2database.com/html/download.html) or add to `pom.xml`:

```XML

    com.h2database

    h2

    2.3.232

```

## Documentation

* [Tutorial](https://h2database.com/html/tutorial.html)

* [SQL commands](https://h2database.com/html/commands.html)

* [Functions](https://h2database.com/html/functions.html), [aggregate functions](https://h2database.com/html/functions-aggregate.html), [window functions](https://h2database.com/html/functions-window.html)

* [Data types](https://h2database.com/html/datatypes.html)

## Support

* [Issue tracker](https://github.com/h2database/h2database/issues) for bug reports and feature requests

* [Mailing list / forum](https://groups.google.com/g/h2-database) for questions about H2

* ['h2' tag on Stack Overflow](https://stackoverflow.com/questions/tagged/h2) for other questions (Hibernate with H2 etc.)