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DBMS > JSqlDb vs. STSdb vs. VelocityDB

System Properties Comparison JSqlDb vs. STSdb vs. VelocityDB

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Editorial information provided by DB-Engines
NameJSqlDb  Xexclude from comparisonSTSdb  Xexclude from comparisonVelocityDB  Xexclude from comparison
JSqlDB seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.
DescriptionJavaScript Query Language Database, stores JavaScript objects and primitivesKey-Value Store with special method for indexing infooptimized for high performance using a special indexing methodA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelDocument store
Object oriented DBMS
Key-value storeGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.06
Rank#365  Overall
#55  Key-value stores
Score0.11
Rank#347  Overall
#35  Graph DBMS
#15  Object oriented DBMS
Websitejsqldb.org (offline)github.com/­STSSoft/­STSdb4velocitydb.com
Technical documentationvelocitydb.com/­UserGuide
DeveloperKonrad von BackstromSTS Soft SCVelocityDB Inc
Initial release201820112011
Current release0.8, December 20184.0.8, September 20157.x
License infoCommercial or Open SourceOpen SourceOpen Source infoGPLv2, commercial license availablecommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC#C#
Server operating systemsLinux
macOS
Windows
WindowsAny that supports .NET
Data schemeschema-freeyesyes
Typing infopredefined data types such as float or datenoyes infoprimitive types and user defined types (classes)yes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nono
Secondary indexesnonoyes
SQL infoSupport of SQLnonono
APIs and other access methods.NET Client API.Net
Supported programming languagesJavaScriptC#
Java
.Net
Server-side scripts infoStored proceduresfunctions in JavaScriptnono
TriggersnonoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes infousing RocksDByesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlnoBased on Windows Authentication

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