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DBMS > Microsoft Azure Data Explorer vs. TerminusDB vs. VelocityDB

System Properties Comparison Microsoft Azure Data Explorer vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameMicrosoft Azure Data Explorer  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionFully managed big data interactive analytics platformScalable 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 modelRelational 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
Score1.65
Rank#118  Overall
#61  Relational DBMS
Score0.02
Rank#342  Overall
#32  Graph DBMS
Score0.07
Rank#311  Overall
#30  Graph DBMS
#16  Object oriented DBMS
Websiteazure.microsoft.com/­services/­data-explorerterminusdb.comvelocitydb.com
Technical documentationdocs.microsoft.com/­en-us/­azure/­data-explorerterminusdb.com/­docsvelocitydb.com/­UserGuide
DeveloperMicrosoftDataChemist Ltd.VelocityDB Inc
Initial release201920182011
Current release1.0, 20187.x
License infoCommercial or Open SourcecommercialOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageProlog, RustC#
Server operating systemshostedLinuxAny that supports .NET
Data schemeyesyesyes
Typing infopredefined data types such as float or dateyesyesyes
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.yesnono
Secondary indexesyes
SQL infoSupport of SQLKusto Query Language (KQL), SQL subsetSQL-like query language (WOQL)no
APIs and other access methodsMicrosoft SQL Server communication protocol (MS-TDS)
RESTful HTTP API
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languages.Net
Java
JavaScript (Node.js)
PowerShell
Python
R
JavaScript
Python
.Net
Server-side scripts infoStored proceduresYes. Languages: KQL, Python, Ryesno
TriggersTable-level update policy rules can be used to automatically run a query and ingest its results when data is ingested into another table.yesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud service. Replication either local, cross-facility or geo-redundant.Journaling Streams
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
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlAzure Active Directory AuthenticationRole-based access controlBased on Windows Authentication

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More resources
Microsoft Azure Data ExplorerTerminusDB infoformer name was DataChemistVelocityDB
Recent citations in the news

Updated Tools for Office 365 and Microsoft Azure Arriving Soon
20 September 2019, Redmondmag.com

Microsoft Readies Raft of Updates to Office 365 and Azure Tools
20 September 2019, Redmond Channel Partner

Microsoft Updates Azure Storage Explorer with Simplified Managed Disks
27 September 2019, WinBuzzer

Fastly, Microsoft partner on real-time analytics with Azure Data Explorer
29 January 2019, ZDNet

An overview of Azure Data Explorer (ADX) - Microsoft
7 February 2019, Channel 9

provided by Google News

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