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DBMS > Oracle Coherence vs. RDFox vs. Sadas Engine vs. VelocityDB

System Properties Comparison Oracle Coherence vs. RDFox vs. Sadas Engine vs. VelocityDB

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Editorial information provided by DB-Engines
NameOracle Coherence  Xexclude from comparisonRDFox  Xexclude from comparisonSadas Engine  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionOracles in-memory data grid solutionHigh performance knowledge graph and semantic reasoning engineSADAS Engine is a columnar DBMS specifically designed for high performance in data warehouse environmentsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelKey-value storeGraph DBMS
RDF store
Relational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.92
Rank#130  Overall
#22  Key-value stores
Score0.23
Rank#308  Overall
#25  Graph DBMS
#14  RDF stores
Score0.00
Rank#383  Overall
#158  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitewww.oracle.com/­java/­coherencewww.oxfordsemantic.techwww.sadasengine.comvelocitydb.com
Technical documentationdocs.oracle.com/­en/­middleware/­standalone/­coherencedocs.oxfordsemantic.techwww.sadasengine.com/­en/­sadas-engine-download-free-trial-and-documentation/­#documentationvelocitydb.com/­UserGuide
DeveloperOracleOxford Semantic TechnologiesSADAS s.r.l.VelocityDB Inc
Initial release2007201720062011
Current release14.1, August 20236.0, Septermber 20228.07.x
License infoCommercial or Open Sourcecommercialcommercialcommercial infofree trial version availablecommercial
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 languageJavaC++C++C#
Server operating systemsAll OS with a Java VMLinux
macOS
Windows
AIX
Linux
Windows
Any that supports .NET
Data schemeschema-freeyes infoRDF schemasyesyes
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 indexesnoyesyes
SQL infoSupport of SQLnonoyesno
APIs and other access methodsJCache
JPA
RESTful HTTP API
RESTful HTTP API
SPARQL 1.1
JDBC
ODBC
Proprietary protocol
.Net
Supported programming languages.Net
C++
Java
C
Java
.Net
C
C#
C++
Groovy
Java
PHP
Python
.Net
Server-side scripts infoStored proceduresnonono
Triggersyes infoLive EventsnoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardinghorizontal partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with selectable consistency levelreplication via a shared file systemnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Immediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataconfigurableACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes infooptionallyyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes infomanaged by 'Learn by Usage'yes
User concepts infoAccess controlauthentification to access the cache via certificates or http basic authenticationRoles, resources, and access typesAccess rights for users, groups and roles according to SQL-standardBased on Windows Authentication

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More resources
Oracle CoherenceRDFoxSadas EngineVelocityDB
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