HSQLDB
8.1#2 in relational databasesFrom $100 a yearFree planAPILinuxmacOSSelf-hosted
VisitHSQLDB vs Tkrzw
What both publish
| Fact | HSQLDB | Tkrzw |
|---|---|---|
| Concurrency | The engine is multithreaded and offers lock-based, MVCC and hybrid transaction-control models. | The API documentation says all database classes are thread-safe for simultaneous access by multiple threads. |
| License | HSQLDB source and binaries use permissive BSD-based licenses, with separate terms for legacy Hypersonic SQL code. | The project repository identifies the license as Apache-2.0. |
HSQLDB plans
- Developer subscription$100 a year
- Basic Corporate subscription—
- Premier Corporate subscription$2,500 a year
- HSQLDB softwareFree
- HSQLDBFree
- Developer SupportWare$100 a year
Tkrzw plans
No prices published.
Pick HSQLDB if…
HSQLDB may suit developers and organizations seeking a self-hosted Java database with embedded or server operation. Its listed tools and integrations may also be relevant to teams using the named Java and database projects.
Pick Tkrzw if…
You want what its maker publishes above — check its page for the details.