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DBMS > eXtremeDB vs. GRAKN.AI

System Properties Comparison eXtremeDB vs. GRAKN.AI

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Editorial information provided by DB-Engines
NameeXtremeDB  Xexclude from comparisonGRAKN.AI  Xexclude from comparison
DescriptionNatively in-memory DBMS with options for persistency, high-availability and clusteringGrakn is a distributed, hyper-relational database for managing complex data that serves as a knowledge base for cognitive/AI systems.
Primary database modelRelational DBMS
Time Series DBMS
Graph DBMS
Relational DBMS infoOften described as a 'hyper-relational' database, since it implements the 'Entity-Relationship Paradigm' to manage complex data structures and ontologies.
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.39
Rank#220  Overall
#104  Relational DBMS
#12  Time Series DBMS
Score0.20
Rank#256  Overall
#21  Graph DBMS
#120  Relational DBMS
Websitewww.mcobject.com/­extremedbfamilygrakn.ai
Technical documentationwww.mcobject.com/­docs/­eXtremeDB.htmdev.grakn.ai/­docs
DeveloperMcObjectGrakn Labs Ltd
Initial release20012016
Current release8.0, May 20181.5.8, August 2019
License infoCommercial or Open SourcecommercialOpen Source infoGPL Version 3, commercial licenses available
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC and C++Java
Server operating systemsAIX
HP-UX
Linux
macOS
Solaris
Windows
Linux
OS X
Windows
Data schemeyesyes
Typing infopredefined data types such as float or dateyesyes
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.no infosupport of XML interfaces availableno
Secondary indexesyesyes
SQL infoSupport of SQLyes infowith the option: eXtremeSQLno
APIs and other access methods.NET Client API
JDBC
JNI
ODBC
proprietary protocol
console (shell)
gRPC protocol
Workbase (visualisation software)
Supported programming languages.Net
C
C#
C++
Java
Lua
Python
All JVM based languages
Groovy
Java
JavaScript (Node.js)
Python
Scala
Server-side scripts infoStored proceduresyesno
Triggersyes infoby defining eventsno
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning / shardingSharding infoby using Cassandra
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-master replication infoby means of eXtremeDB Cluster option
Master-slave replication infoby means of eXtremeDB High Availability option
Master-master replication infoby using Cassandra
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infoby using Apache Kafka and Apache Zookeeper
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesno infosubstituted by the relationship feature
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID
Concurrency infoSupport for concurrent manipulation of datayes infoOptimistic (MVCC) and pessimistic (locking) strategies availableyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlyes infoat REST API level; other APIs in progress
More information provided by the system vendor
eXtremeDBGRAKN.AI
Specific characteristicseXtremeDB is an in-memory and/or persistent database system that offers an ultra-small...
» more
Grakn is the knowledge graph to organise complex networks of data and making it queryable,...
» more
Competitive advantageseXtremeDB databases can be modeled relationally or as objects and can utilize SQL...
» more
Expressive and flexible data model: The meta-schema of Grakn allows for modelling...
» more
Typical application scenariosIoT application across all markets: Industrial Control, Netcom, Telecom, Defense,...
» more
Life sciences : Grakn makes working with biological data much easier and accelerates...
» more
Key customersSchneider Electronics, F5 Networks, TNS, Boeing, Northrop Grumman, GoPro, ViaSat,...
» more
Market metricsWith hundreds of customers and over 28 million devices/applications using the product...
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Licensing and pricing modelsFor server use cases, there is a simple per-server license irrespective of the number...
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AGPL and Commercial . The commercial license is priced based on cluster resources...
» more

Related products and services

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More resources
eXtremeDBGRAKN.AI
Conferences and events

Grakn Cosmos, the universal conference of technologies built using Grakn
London, UK, 6-7 February 2020

Recent citations in the news

McObject's eXtremeDB for HPC is Now Available on AWS
15 October 2019, HPCwire

eXtremeDB shortlisted in 4 different best DBMS categories in 1 week
8 October 2019, IoT For All

Unique Active Replication Fabric feature announced by McObject for its eXtremeDB IoT SDK bundle
13 May 2019, GlobeNewswire

eXtremeDB shortlisted for two Data Management Insight Awards
26 September 2019, Yahoo Finance

DBMS Simplifies IoT Connectivity
5 June 2019, IoT For All

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15 March 2017, DZone News

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28 October 2017, YourStory.com

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20 September 2017, Cloud Pro

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