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https://github.com/hhblaze/DBreeze

C# .NET NOSQL ( key value store embedded ) ACID multi-paradigm database management system.
https://github.com/hhblaze/DBreeze

acid android c-sharp clustering database dotnet embedded key net netcore netstandard nosql search search-engine similarity-search text transaction value vector-database xamarin

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C# .NET NOSQL ( key value store embedded ) ACID multi-paradigm database management system.

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README 

        
DBreeze ![Image of DBreeze](https://github.com/hhblaze/DBreeze/blob/master/Documentation/Dbreeze.Logo.png) Database

=====================

![Image of Build](https://img.shields.io/badge/DBreeze%20build-1.115%20production-9933FF.svg) 

[![Image of Build](https://img.shields.io/badge/License-BSD%203,%20FOSS-FC0574.svg)](https://github.com/hhblaze/DBreeze/blob/master/LICENSE)

![Image of Build](https://img.shields.io/badge/Roadmap-completed-33CC33.svg)

[![NuGet Badge](https://buildstats.info/nuget/DBreeze)](https://www.nuget.org/packages/DBreeze/)

[![Image of Build](https://img.shields.io/badge/Powered%20by-tiesky.com-1883F5.svg)](https://tiesky.com)



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](https://github.com/dotnet/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](https://github.com/dotnet/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



- Quick start guides 

- Assemblies location 

- Documentation (PDF, actual)

- Documentation (HTML, actual)

- Benchmark (HTML, actual)

- Release notes

- DBreeze tuning advices

- Discussion on the forum 



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 Layer / Similarity Search Engine / Clustering, based on KMeans++ Centroids Propagated Graph.

- Integrated binary and JSON serializer [Biser.NET](https://github.com/hhblaze/Biser)

- High Availability, Redundancy and Fault Tolerance via [Raft.NET](https://github.com/hhblaze/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](https://github.com/hhblaze/DBreeze/tree/master/Deployment/bin/SignedDLL) are located separately. 



[email protected]