DBreeze database key features: - Embedded .NET family assembly, platform independent and without references to other libraries. - Multi-threaded, ACID compliant, with a solution for deadlocks resolving/elimination, parallel reads and synchronized writes/reads. - No fixed scheme for table names (construction and access on the fly). - Tables can reside in mixed locations: different folders, hard drives, memory, in-memory with disk persistence. - Liana-Trie indexing technology. Database indexes (keys) never need to be defragmented. Speed of insert/update/remove operations doesn't change during the time. - Ability to access Key/Value pair of a table by physical link, that can economize time for joining necessary data structures. - No limits for database size (except "long" size for each table and physical resources constraints). - Low memory and physical space consumption, also while random inserts and updates. Updates reside the same physical space, when possible or configured. - High performance of CRUD operations. When you need, unleash DBreeze power and get 500000 key/value pairs insert or 260K updates per second per core into sorted table on the hard drive of standard PC (benchmark in year 2012). - High speed of random keys batch inserts and updates (update mode is selectable). - Range selects / Traversing (Forward, Backward, From/To, Skip, StartsWith etc). Remove keys, change keys. - Keys and values, on the low level, are always byte arrays. - Max. key size is 65KB, max. value size is 2GB. Value can be represented as a set of columns, where can be stored data types of fixed or dynamic length. Every dynamic datablock (BLOB) can be of size 2GB. - Rich set of conversion functions from/to between byte[] and other data types. - Nested / Fractal tables which can reside inside of master tables values. - Incremental backup/restore option. - Integrated text-search subsystem (full-text/partial). - Integrated object database layer. - Fast multi-parameter search subsystem with powerful query possibilities. - Integrated Vector Database and vector similarity search engine (embedding vectors store/search). - Integrated binary and JSON serializer Biser.NET - High Availability, Redundancy and Fault Tolerance via Raft.NET - DBreeze is a foundation for complex data storage solutions (graph/neuro, object, document, text search etc. data layers). Please, study documentation to understand all abilities of DBreeze. hhblaze@gmail.com


Keywords
.NET, ACID, C#, DBreeze, Liana, NoSQL, data, database, embedded, key, search, text, tree, trie, value, android, c-sharp, clustering, dotnet, net, netcore, netstandard, search-engine, similarity-search, transaction, vector-database, xamarin
License
BSD-2-Clause
Install
Install-Package DBreeze -Version 1.91.3

Documentation

DBreeze Image of DBreeze Database

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DBreeze Database is a professional, open-source, multi-paradigm (embedded Key-Value store, objects, NoSql, text search, multi-parameter search, embedding vector database, vector similarity search / clustering etc.), multi-threaded, transactional and ACID-compliant data management system for .NET5> / .NET Framework 3.5> / Xamarin MONO Android iOS / .NET Core 1.0> / .NET Standard 1.6> / Universal Windows Platform / .NET Portable / CoreRT

...for servers, desktops, mobiles and internet-of-things... Made with C#

  • It's free software for those who believe it should be free.
  • It has been used in our own production environment since June 2012.
  • Follow the project, to be in touch with the recent optimizations and enhancements.
  • DBreeze via NuGet since January 2014.
  • DBreeze for .NETCore, CoreRT, .NET Standard / UWP (Universal Windows Platform), .NET Framework grab via NuGet.
  • Works on Linux, Windows, OS X. Via Xamarin on Android, iOS.
  • DBreeze is listed in nosql-database.org, Awesome .NET Core, awesome-dotnet
  • Read "Release notes" document to get latest DBreeze news.

Its homepage is http://dbreeze.tiesky.com or https://github.com/hhblaze/DBreeze

Key features:

  • Embedded .NET family assembly, platform independent and without references to other libraries.
  • Multi-threaded, ACID compliant, with a solution for deadlocks resolving/elimination, parallel reads and synchronized writes/reads.
  • No fixed scheme for table names (construction and access on the fly).
  • Tables can reside in mixed locations: different folders, hard drives, memory, in-memory with disk persistence.
  • Liana-Trie indexing technology. Database indexes (keys) never need to be defragmented. Speed of insert/update/remove operations doesn't change during the time.
  • Ability to access Key/Value pair of a table by physical link, that can economize time for joining necessary data structures.
  • No limits for database size (except "long" size for each table and physical resources constraints).
  • Low memory and physical space consumption, also while random inserts and updates. Updates reside the same physical space, when possible or configured.
  • High performance of CRUD operations. When you need, unleash DBreeze power and get 500000 key/value pairs insert or 260K updates per second per core into sorted table on the hard drive of standard PC (benchmark in year 2012).
  • High speed of random keys batch inserts and updates (update mode is selectable).
  • Range selects / Traversing (Forward, Backward, From/To, Skip, StartsWith etc). Remove keys, change keys.
  • Keys and values, on the low level, are always byte arrays.
  • Max. key size is 65KB, max. value size is 2GB. Value can be represented as a set of columns, where can be stored data types of fixed or dynamic length. Every dynamic datablock (BLOB) can be of size 2GB.
  • Rich set of conversion functions from/to between byte[] and other data types.
  • Nested / Fractal tables which can reside inside of master tables values.
  • Incremental backup/restore option.
  • Integrated text-search subsystem (full-text/partial).
  • Integrated object database layer.
  • Fast multi-parameter search subsystem with powerful query possibilities.
  • Integrated Vector Database / similarity search engine / clustering KMeans.
  • Integrated binary and JSON serializer Biser.NET
  • High Availability, Redundancy and Fault Tolerance via Raft.NET
  • DBreeze is a foundation for complex data storage solutions (graph/neuro, object, document, text search etc. data layers). Please, study documentation to understand all abilities of DBreeze.

Special thanx:

"Free code signing provided by SignPath.io, certificate by SignPath Foundation" Signed DLLs are located separately.

hhblaze@gmail.com