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DBMS > RDFox vs. Sadas Engine vs. SQL.JS vs. VelocityDB

System Properties Comparison RDFox vs. Sadas Engine vs. SQL.JS vs. VelocityDB

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Editorial information provided by DB-Engines
NameRDFox  Xexclude from comparisonSadas Engine  Xexclude from comparisonSQL.JS  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionHigh performance knowledge graph and semantic reasoning engineSADAS Engine is a columnar DBMS specifically designed for high performance in data warehouse environmentsPort of SQLite to JavaScriptA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelGraph DBMS
RDF store
Relational DBMSRelational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.23
Rank#308  Overall
#25  Graph DBMS
#14  RDF stores
Score0.00
Rank#383  Overall
#158  Relational DBMS
Score0.53
Rank#252  Overall
#116  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitewww.oxfordsemantic.techwww.sadasengine.comsql.js.orgvelocitydb.com
Technical documentationdocs.oxfordsemantic.techwww.sadasengine.com/­en/­sadas-engine-download-free-trial-and-documentation/­#documentationsql.js.org/­documentation/­index.htmlvelocitydb.com/­UserGuide
DeveloperOxford Semantic TechnologiesSADAS s.r.l.Alon Zakai infoenhancements implemented by othersVelocityDB Inc
Initial release2017200620122011
Current release6.0, Septermber 20228.07.x
License infoCommercial or Open Sourcecommercialcommercial infofree trial version availableOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++C++JavaScriptC#
Server operating systemsLinux
macOS
Windows
AIX
Linux
Windows
server-less, requires a JavaScript environment (browser, Node.js)Any that supports .NET
Data schemeyes infoRDF schemasyesyesyes
Typing infopredefined data types such as float or dateyesyesyesyes
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.nonono
Secondary indexesyesyes
SQL infoSupport of SQLnoyesyes infoSQL-92 is not fully supportedno
APIs and other access methodsRESTful HTTP API
SPARQL 1.1
JDBC
ODBC
Proprietary protocol
JavaScript API.Net
Supported programming languagesC
Java
.Net
C
C#
C++
Groovy
Java
PHP
Python
JavaScript.Net
Server-side scripts infoStored proceduresnonono
TriggersnonoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesreplication via a shared file systemnonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate ConsistencynoneImmediate Consistency
Foreign keys infoReferential integrityyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyesno infoexcept by serializing a db to a fileyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infomanaged by 'Learn by Usage'yesyes
User concepts infoAccess controlRoles, resources, and access typesAccess rights for users, groups and roles according to SQL-standardnoBased on Windows Authentication

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More resources
RDFoxSadas EngineSQL.JSVelocityDB
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