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DBMS > Memgraph vs. TerminusDB vs. VelocityDB

System Properties Comparison Memgraph vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameMemgraph  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionA hybrid, in-memory first, distributed graph DBMS delivering high-performance on analytical and transactional workloads at enterprise scaleScalable 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 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
Score0.05
Rank#318  Overall
#31  Graph DBMS
Score0.02
Rank#342  Overall
#32  Graph DBMS
Score0.07
Rank#311  Overall
#30  Graph DBMS
#16  Object oriented DBMS
Websitememgraph.comterminusdb.comvelocitydb.com
Technical documentationmemgraph.com/­docsterminusdb.com/­docsvelocitydb.com/­UserGuide
DeveloperMemgraph LtdDataChemist Ltd.VelocityDB Inc
Initial release201720182011
Current release1.0, 20187.x
License infoCommercial or Open Sourcecommercial infoFree license availableOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC and C++Prolog, RustC#
Server operating systemsLinuxLinuxAny that supports .NET
Data schemeschema-free and schema-optionalyesyes
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.nonono
Secondary indexesyes
SQL infoSupport of SQLnoSQL-like query language (WOQL)no
APIs and other access methodsBolt protocol
Cypher query language
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languages.Net
C
C++
Elixir
Go
Haskell
Java
JavaScript
PHP
Python
Ruby
Scala
JavaScript
Python
.Net
Server-side scripts infoStored proceduresyesno
TriggersyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infodynamic graph partitioningGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-Master replication using RAFTJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyes inforelationships in graphsyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infowith snapshot isolationACIDACID
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyes infowith periodic snapshot and write-ahead logging (WAL) of changesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlUsers, roles and permissionsRole-based access controlBased on Windows Authentication

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More resources
MemgraphTerminusDB infoformer name was DataChemistVelocityDB
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