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DBMS > DataFS vs. RDF4J vs. Snowflake vs. Transwarp KunDB vs. VelocityDB

System Properties Comparison DataFS vs. RDF4J vs. Snowflake vs. Transwarp KunDB vs. VelocityDB

Editorial information provided by DB-Engines
NameDataFS  Xexclude from comparisonRDF4J infoformerly known as Sesame  Xexclude from comparisonSnowflake  Xexclude from comparisonTranswarp KunDB  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionAll data is stored inside objects which are linked by so-called link attributes. Objects consist of classes which can be extended and de-extended at runtime. Graphs can be defined with a struct.RDF4J is a Java framework for processing RDF data, supporting both memory-based and a disk-based storage.Cloud-based data warehousing service for structured and semi-structured dataOLTP DBMS based on a distributed architecture and highly compatible with MySQL and OracleA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelObject oriented DBMSRDF storeRelational DBMSRelational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsGraph DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.09
Rank#360  Overall
#17  Object oriented DBMS
Score0.74
Rank#222  Overall
#9  RDF stores
Score130.36
Rank#8  Overall
#5  Relational DBMS
Score0.14
Rank#341  Overall
#149  Relational DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitenewdatabase.comrdf4j.orgwww.snowflake.comwww.transwarp.cn/­en/­product/­kundbvelocitydb.com
Technical documentationdev.mobiland.com/­Overview.xsprdf4j.org/­documentationdocs.snowflake.net/­manuals/­index.htmlvelocitydb.com/­UserGuide
DeveloperMobiland AGSince 2016 officially forked into an Eclipse project, former developer was Aduna Software.Snowflake Computing Inc.TranswarpVelocityDB Inc
Initial release2018200420142011
Current release1.1.263, October 20227.x
License infoCommercial or Open SourcecommercialOpen Source infoEclipse Distribution License (EDL), v1.0.commercialcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenonoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC#
Server operating systemsWindowsLinux
OS X
Unix
Windows
hostedAny that supports .NET
Data schemeClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)yes infoRDF Schemasyes infosupport of semi-structured data formats (JSON, XML, Avro)yesyes
Typing infopredefined data types such as float or dateyesyesyesyesyes
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.noyesno
Secondary indexesnoyesyesyes
SQL infoSupport of SQLnonoyesyesno
APIs and other access methods.NET Client API
Proprietary client DLL
WinRT client
Java API
RIO infoRDF Input/Output
Sail API
SeRQL infoSesame RDF Query Language
Sesame REST HTTP Protocol
SPARQL
CLI Client
JDBC
ODBC
.Net
Supported programming languages.Net
C
C#
C++
VB.Net
Java
PHP
Python
JavaScript (Node.js)
Python
.Net
Server-side scripts infoStored proceduresyesuser defined functionsyesno
Triggersno, except callback-events from server when changes happenedyesno infosimilar concept for controling cloud resourcesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesProprietary Sharding systemnoneyeshorizontal partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID infoIsolation support depends on the API usedACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyes infoin-memory storage is supported as wellyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes
User concepts infoAccess controlWindows-ProfilenoUsers with fine-grained authorization concept, user roles and pluggable authenticationyesBased on Windows Authentication

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More resources
DataFSRDF4J infoformerly known as SesameSnowflakeTranswarp KunDBVelocityDB
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