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DBMS > Oracle Coherence vs. SiteWhere vs. TerminusDB vs. VelocityDB

System Properties Comparison Oracle Coherence vs. SiteWhere vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameOracle Coherence  Xexclude from comparisonSiteWhere  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionOracles in-memory data grid solutionM2M integration platform for persisting/querying time series dataScalable 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 modelKey-value storeTime Series DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.92
Rank#130  Overall
#22  Key-value stores
Score0.06
Rank#356  Overall
#35  Time Series DBMS
Score0.17
Rank#325  Overall
#29  Graph DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitewww.oracle.com/­java/­coherencegithub.com/­sitewhere/­sitewhereterminusdb.comvelocitydb.com
Technical documentationdocs.oracle.com/­en/­middleware/­standalone/­coherencesitewhere1.sitewhere.io/­index.htmlterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperOracleSiteWhereDataChemist Ltd.VelocityDB Inc
Initial release2007201020182011
Current release14.1, August 202311.0.0, January 20237.x
License infoCommercial or Open SourcecommercialOpen Source infoCommon Public Attribution License Version 1.0Open Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaProlog, RustC#
Server operating systemsAll OS with a Java VMLinux
OS X
Windows
LinuxAny that supports .NET
Data schemeschema-freepredefined schemeyesyes
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.nononono
Secondary indexesnonoyes
SQL infoSupport of SQLnonoSQL-like query language (WOQL)no
APIs and other access methodsJCache
JPA
RESTful HTTP API
HTTP RESTOWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languages.Net
C++
Java
JavaScript
Python
.Net
Server-side scripts infoStored proceduresnoyesno
Triggersyes infoLive EventsyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardingSharding infobased on HBaseGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with selectable consistency levelselectable replication factor infobased on HBaseJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataconfigurablenoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes infooptionallyyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlauthentification to access the cache via certificates or http basic authenticationUsers with fine-grained authorization conceptRole-based access controlBased on Windows Authentication

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More resources
Oracle CoherenceSiteWhereTerminusDB infoformer name was DataChemistVelocityDB
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