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DBMS > MemSQL vs. TerminusDB vs. VelocityDB

System Properties Comparison MemSQL vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameMemSQL  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionMySQL wire-compliant distributed RDBMS that combines an in-memory row-oriented and a disc-based column-oriented storageScalable 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 storeDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.81
Rank#72  Overall
#38  Relational DBMS
Score0.02
Rank#342  Overall
#32  Graph DBMS
Score0.07
Rank#311  Overall
#30  Graph DBMS
#16  Object oriented DBMS
Websitewww.memsql.comterminusdb.comvelocitydb.com
Technical documentationdocs.memsql.comterminusdb.com/­docsvelocitydb.com/­UserGuide
DeveloperMemSQL Inc.DataChemist Ltd.VelocityDB Inc
Initial release201320182011
Current release6.8, August 20191.0, 20187.x
License infoCommercial or Open Sourcecommercial infofree developer edition 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++Prolog, RustC#
Server operating systemsLinux info64 bit version requiredLinuxAny 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.nonono
Secondary indexesyesyes
SQL infoSupport of SQLyes, but no triggers and foreign keysSQL-like query language (WOQL)no
APIs and other access methodsJDBC
ODBC
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesBash
C
C#
Java
JavaScript (Node.js)
Python
JavaScript
Python
.Net
Server-side scripts infoStored proceduresyesyesno
TriggersnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardingGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-slave replicationJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency only within each nodeImmediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoOnly isolation level: READ COMMITEDACIDACID
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yesyes
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.yesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardRole-based access controlBased on Windows Authentication
More information provided by the system vendor
MemSQLTerminusDB infoformer name was DataChemistVelocityDB
Specific characteristicsMemSQL is The No Limits Databaseā„¢, powering modern applications and analytical systems...
» more
Competitive advantagesPerformance - Shattering the Trillion-Rows-Per-Second Barrier Fast data ingest -...
» more
Typical application scenariosReal-Time Analytics Internet of Things Personalization and Recommendations Risk Management...
» more
Key customersComcast - Real-time Stream Processing Architecture DellEMC - Getting it Right Exactly...
» more
Market metricsCustomers in various industries worldwide -- US and International Industry Solutions:...
» more
Licensing and pricing modelsF ree Tier and Enterprise Edition
» more

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More resources
MemSQLTerminusDB infoformer name was DataChemistVelocityDB
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Recent citations in the news

MemSQL joins cloud database gang
25 September 2019, Blocks and Files

MemSQL Readies Cloud Database Service and Revved Operational Analytics Engine
30 September 2019, Channel Futures

MemSQL Pushes Translytical Database into the Cloud
24 September 2019, RTInsights

MemSQL Ups Ante on Cloud Databases
24 September 2019, Datanami

MemSQL 7.0 set to advance both row and column data stores
8 October 2019, TechTarget

provided by Google News

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