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DBMS > Stardog vs. VelocityDB

System Properties Comparison Stardog vs. VelocityDB

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Editorial information provided by DB-Engines
NameStardog  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionSemantic graph DBMS, developed in JavaA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelGraph DBMS
RDF store
Graph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.72
Rank#178  Overall
#13  Graph DBMS
#7  RDF stores
Score0.05
Rank#306  Overall
#29  Graph DBMS
#17  Object oriented DBMS
Websitewww.stardog.comvelocitydb.com
Technical documentationwww.stardog.com/­docsvelocitydb.com/­UserGuide.aspx
DeveloperComplexible Inc.VelocityDB Inc
Initial release20102011
Current release4.2.4, March 20177.x
License infoCommercial or Open Sourcecommercial infoLimited community edition freecommercial
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC#
Server operating systemsAll OS with a Java VMAny that supports .NET
Data schemeschema-freeyes
Typing infopredefined data types such as float or dateyesyes
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.no infoImport/export of XML data possibleno
Secondary indexesyesyes
SQL infoSupport of SQLSPARQL is used as query languageno
APIs and other access methodsHTTP API
OWL
SPARQL
Tinkerpop technology stack with Blueprints, Gremlin, Pipes
.Net
Supported programming languages.Net
Clojure
Groovy
Java
JavaScript
Python
Ruby
.Net
Server-side scripts infoStored proceduresnono
Triggersyes infovia event handlersCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-master replication in HA-Cluster infousing Apache ZooKeeper
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency in HA-ClusterImmediate Consistency
Foreign keys infoReferential integrityyes inforelationships in graphsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlAccess rights for users and rolesBased on Windows Authentication

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