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DBMS > Kdb vs. MonetDB vs. NebulaGraph vs. Oracle Coherence

System Properties Comparison Kdb vs. MonetDB vs. NebulaGraph vs. Oracle Coherence

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Editorial information provided by DB-Engines
NameKdb  Xexclude from comparisonMonetDB  Xexclude from comparisonNebulaGraph  Xexclude from comparisonOracle Coherence  Xexclude from comparison
DescriptionHigh performance Time Series DBMSA relational database management system that stores data in columnsA distributed, linear scalable, high perfomant Graph DBMSOracles in-memory data grid solution
Primary database modelTime Series DBMS
Vector DBMS
Relational DBMSGraph DBMSKey-value store
Secondary database modelsRelational DBMSDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.71
Rank#49  Overall
#2  Time Series DBMS
#1  Vector DBMS
Score1.72
Rank#141  Overall
#64  Relational DBMS
Score2.23
Rank#116  Overall
#10  Graph DBMS
Score1.97
Rank#129  Overall
#22  Key-value stores
Websitekx.comwww.monetdb.orggithub.com/­vesoft-inc/­nebula
www.nebula-graph.io
www.oracle.com/­java/­coherence
Technical documentationcode.kx.comwww.monetdb.org/­Documentationdocs.nebula-graph.iodocs.oracle.com/­en/­middleware/­standalone/­coherence
DeveloperKx Systems, a division of First Derivatives plcMonetDB BVVesoft Inc.Oracle
Initial release2000 infokdb was released 2000, kdb+ in 2003200420192007
Current release3.6, May 2018Dec2023 (11.49), December 202314.1, August 2023
License infoCommercial or Open Sourcecommercial infofree 32-bit versionOpen Source infoMozilla Public License 2.0Open Source infoApache Version 2.0 + Common Clause 1.0commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageqCC++Java
Server operating systemsLinux
OS X
Solaris
Windows
FreeBSD
Linux
OS X
Solaris
Windows
LinuxAll OS with a Java VM
Data schemeyesyesStrong typed schemaschema-free
Typing infopredefined data types such as float or dateyesyesyesyes
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 infotable attribute 'grouped'yesyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.no
SQL infoSupport of SQLSQL-like query language (q)yes infoSQL 2003 with some extensionsSQL-like query languageno
APIs and other access methodsHTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
JDBC
native C library infoMAPI library (MonetDB application programming interface)
ODBC
Browser interface
console (shell)
Cypher Query Language
GO Object Graph Mapper
Java Object Graph Mapper
NGBatis infoORM framework for NebulaGraph and Spring-Boot
Proprietary native API
Python Object Graph Mapper
Query language nGQL
JCache
JPA
RESTful HTTP API
Supported programming languagesC
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
C
C++
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
.Net
C++
Go
Java
PHP
Python
.Net
C++
Java
Server-side scripts infoStored proceduresuser defined functionsyes, in SQL, C, Ruser defined functionsno
Triggersyes infowith viewsyesyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningSharding via remote tablesShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationnone infoSource-replica replication available in experimental statusCausal Clustering using Raft protocolyes, with selectable consistency level
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infosimilar paradigm used for internal processingnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integrityyesyesyes infoRelationships in graphsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDconfigurable
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyes infousing RocksDByes infooptionally
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlrights management via user accountsfine grained access rights according to SQL-standardRole-based access controlauthentification to access the cache via certificates or http basic authentication
More information provided by the system vendor
KdbMonetDBNebulaGraphOracle Coherence
Specific characteristicsIntegrated columnar database & programming system for streaming, real time and historical...
» more
NebulaGraph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more
Competitive advantagesprovides seamless scalability; runs on industry standard server platforms; is top-ranked...
» more
NebulaGraph boasts the world's only graph database solution that is able to host...
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Typical application scenariostick database streaming sensor data massive intelligence applications oil and gas...
» more
Social networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Key customersGoldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
» more
Companies from a variety of industries have implemented NebulaGraph Database in production,...
» more
Market metricskdb+ performance and reliability proven by our customers in critical infrastructure...
» more
At our very early stage, NebulaGraph has already received over 10,000 stars on GitHub...
» more
Licensing and pricing modelsupon request
» more
NebulaGraph is open source and free to use under Apache 2.0 license.
» more

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More resources
KdbMonetDBNebulaGraphOracle Coherence
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