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DBMS > RDFox vs. ScyllaDB vs. TerminusDB vs. VelocityDB

System Properties Comparison RDFox vs. ScyllaDB vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameRDFox  Xexclude from comparisonScyllaDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionHigh performance knowledge graph and semantic reasoning engineCassandra and DynamoDB compatible wide column storeScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelGraph DBMS
RDF store
Wide column storeGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsRelational DBMSKey-value storeDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.23
Rank#308  Overall
#25  Graph DBMS
#14  RDF stores
Score4.75
Rank#68  Overall
#5  Wide column stores
Score0.17
Rank#325  Overall
#29  Graph DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitewww.oxfordsemantic.techwww.scylladb.comterminusdb.comvelocitydb.com
Technical documentationdocs.oxfordsemantic.techdocs.scylladb.comterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperOxford Semantic TechnologiesScyllaDBDataChemist Ltd.VelocityDB Inc
Initial release2017201520182011
Current release6.0, Septermber 2022ScyllaDB Open Source 5.4.1, January 202411.0.0, January 20237.x
License infoCommercial or Open SourcecommercialOpen Source infoOpen Source (AGPL), commercial license availableOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Scylla Cloud: Create real-time applications that run at global scale with Scylla Cloud, the industry’s most powerful NoSQL DBaaS
Implementation languageC++C++Prolog, RustC#
Server operating systemsLinux
macOS
Windows
LinuxLinuxAny that supports .NET
Data schemeyes infoRDF schemasschema-freeyesyes
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 indexesyes infocluster global secondary indicesyes
SQL infoSupport of SQLnoSQL-like DML and DDL statements (CQL)SQL-like query language (WOQL)no
APIs and other access methodsRESTful HTTP API
SPARQL 1.1
Proprietary protocol (CQL) infocompatible with CQL (Cassandra Query Language, an SQL-like language)
RESTful HTTP API (DynamoDB compatible)
Thrift
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesC
Java
For CQL interface: C#, C++, Clojure, Erlang, Go, Haskell, Java, JavaScript, Node.js, Perl, PHP, Python, Ruby, Rust, Scala
For DynamoDB interface: .Net, ColdFusion, Erlang, Groovy, Java, JavaScript, Perl, PHP, Python, Ruby
JavaScript
Python
.Net
Server-side scripts infoStored proceduresyes, Luayesno
TriggersnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardingGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesreplication via a shared file systemselectable replication factor infoRepresentation of geographical distribution of servers is possibleJournaling Streams
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 setupsEventual Consistency
Tunable Consistency infocan be individually decided for each write operation
Immediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoAtomicity and isolation are supported for single operationsACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infoin-memory tablesyes
User concepts infoAccess controlRoles, resources, and access typesAccess rights for users can be defined per objectRole-based access controlBased on Windows Authentication
More information provided by the system vendor
RDFoxScyllaDBTerminusDB infoformer name was DataChemistVelocityDB
Specific characteristicsScyllaDB is engineered to deliver predictable performance at scale. It’s adopted...
» more
Competitive advantagesHighly-performant (efficiently utilizes full resources of a node and network; millions...
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Typical application scenariosScyllaDB is ideal for applications that require high throughput and low latency at...
» more
Key customersDiscord, Epic Games, Expedia, Zillow, Comcast, Disney+ Hotstar, Samsung, ShareChat,...
» more
Market metricsScyllaDB typically offers ~75% total cost of ownership savings, with ~5X higher throughput...
» more
Licensing and pricing modelsScyllaDB Open Source - free open source software (AGPL) ScyllaDB Enterprise - subscription-based...
» more

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RDFoxScyllaDBTerminusDB infoformer name was DataChemistVelocityDB
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