Berkeley DB
Berkeley DB (libdb) is a programmatic toolkit that provides embedded database support for both traditional and client/server applications. It includes b+tree, queue, extended linear hashing, fixed, and variable-length record access methods, transactions, locking, logging, shared memory caching, database recovery, and replication for highly available systems. DB supports C, C++, C#, Java, PHP, and Perl APIs. It supports key-value pair (NoSQL), SQL, and Java Object formatted data. It is available for a wide variety of Unix platforms as well as QNX, Android, Mac OS X, and several varieties of Windows.
| Tags | Database Database Engines/Servers |
|---|---|
| Licenses | Sleepycat License |
| Operating Systems | Windows Unix FreeBSD Solaris HP-UX Mac OS AIX Linux Android QNX Windriver |
| Implementation | C C++ Java Perl Python Tcl C# |
Recent releases
- 30 May 2012 00:03
Release Notes: The first 5.3 release came out a few month ago. One of the main highlights was support for the Android platform. 5.3.21 is the second release. This is mainly a bugfix release, but it does include one feature which is potentially very interesting, support for Oracle JDK7.
- 21 Sep 2010 14:53
Release Notes: New features include an online backup command for SQL, VACUUM (which does not require the database to be quiescent), encryption, BFILE, ADO.NET, iOS/iPhone/iPad support (in addition to existing support for Android), a new command line tool called "db_replicate" which will turn non-HA applications into HA/replicated applications with no new code, performance improvements, and lots of other features.
- 03 Feb 2010 21:32
Release Notes: Increased Performance: improved concurrency for multi-threaded applications on SMP systems. A new db_sql tool: automatic generation of Berkeley DB application code from SQL for faster development and migration. New APIs: support for C#/.NET and the C++ Standard Template Library (STL).
- 26 Oct 2008 08:09
Release Notes: The lock manager may now be partitioned, improving performance on some SMP and CMP systems. Optional pre-zero log files. Replications across different endian CPUs. Replication can manage the master node via leases. The Java/JNI API now supports the Direct Persistence Layer (DPL). failchk() and other methods related to post-process failure database cleanup have been improved.
- 29 Sep 2006 17:54
Release Notes: Non-stop upgrades for replicated systems: customers can upgrade/patch the database without taking the entire system down. Multi-version concurrency control (MVCC) allows read transactions to proceed without being blocked by write transactions, therefore improving concurrency and performance. Replication framework is a pre-built, out of the box framework that makes it faster and easier for developers to build replicated apps.
Recent comments
For those of you have been familiar with Berkeley DB over the years, it's worth mentioning that Berkeley DB now includes a SQL API in addition to the traditional k/v access methods. The SQL API is compatible with SQLite, meaning Berkeley DB can function as a drop-in replacement, usually with no code changes.
Recent versions of Berkeley DB support both iOS and Android platforms, as well as Java SE, SE Embedded, and OJEC.
Re: Discussion Forum
> Is there any discussion forum specific
> to BerkeleyDB?
There is a Usenet newsgroup, comp.databases.berkeley-db, that was created recently.
Discussion Forum
Is there any discussion forum specific to BerkeleyDB?
Re: License
The SleepyCat license is very similar to the GPL and it is free as long as its used in a Free application. You only need to purchase a license from SleepyCat if it is to be used in a proprietary application. The SleepyCat license is also 100% GPL compatible, so it can be used in GPLed software..
See http://www.sleepycat.com/licensing.html (http://www.sleepycat.com/licensing.html) for details
License
I don't think that "free for non-commercial use" is a very accurate description of the license in the Sleepycat Berkeley DB distribution. As far as i can tell, it is compliant with the Open Source definition (they certainly claim that it is).
dsegleau
29 Dec 2010 04:02
