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DBMS > Dgraph vs. Kdb vs. openGemini vs. Oracle Coherence vs. SAP IQ

System Properties Comparison Dgraph vs. Kdb vs. openGemini vs. Oracle Coherence vs. SAP IQ

Editorial information provided by DB-Engines
NameDgraph  Xexclude from comparisonKdb  Xexclude from comparisonopenGemini  Xexclude from comparisonOracle Coherence  Xexclude from comparisonSAP IQ infoformer name: Sybase IQ  Xexclude from comparison
DescriptionDistributed and scalable native Graph DBMSHigh performance Time Series DBMSAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityOracles in-memory data grid solutionColumnar RDBMS optimized for Big Data analytics
Primary database modelGraph DBMSTime Series DBMS
Vector DBMS
Time Series DBMSKey-value storeRelational DBMS infocolumn-oriented
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.53
Rank#152  Overall
#15  Graph DBMS
Score7.71
Rank#49  Overall
#2  Time Series DBMS
#1  Vector DBMS
Score0.09
Rank#361  Overall
#37  Time Series DBMS
Score1.97
Rank#129  Overall
#22  Key-value stores
Score2.64
Rank#108  Overall
#52  Relational DBMS
Websitedgraph.iokx.comwww.opengemini.org
github.com/­openGemini
www.oracle.com/­java/­coherencewww.sap.com/­products/­technology-platform/­sybase-iq-big-data-management.html
Technical documentationdgraph.io/­docscode.kx.comdocs.opengemini.org/­guidedocs.oracle.com/­en/­middleware/­standalone/­coherencehelp.sap.com/­docs/­SAP_IQ
DeveloperDgraph Labs, Inc.Kx Systems, a division of First Derivatives plcHuawei and openGemini communityOracleSAP, formerly Sybase
Initial release20162000 infokdb was released 2000, kdb+ in 2003202220071994
Current release3.6, May 20181.1, July 202314.1, August 202316.1 SPS04, April 2019
License infoCommercial or Open SourceOpen Source infoApache 2.0commercial infofree 32-bit versionOpen Source infoApache Version 2.0commercialcommercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoqGoJava
Server operating systemsLinux
OS X
Windows
Linux
OS X
Solaris
Windows
Linux
Windows
All OS with a Java VMAIX
HP-UX
Linux
Solaris
Windows
Data schemeschema-freeyesschema-freeschema-freeyes
Typing infopredefined data types such as float or dateyesyesInteger, Float, Boolean, Stringyesyes
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.noyesnonono
Secondary indexesyesyes infotable attribute 'grouped'yesnoyes
SQL infoSupport of SQLnoSQL-like query language (q)SQL-like query languagenoyes
APIs and other access methodsGraphQL query language
gRPC (using protocol buffers) API
HTTP API
HTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
HTTP RESTJCache
JPA
RESTful HTTP API
ADO.NET
JDBC
ODBC
RESTful HTTP API
Supported programming languagesC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
C
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
.Net
C++
Java
C
C#
C++
Java
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnouser defined functionsnonoyes
Triggersnoyes infowith viewsnoyes infoLive Eventsyes
Partitioning methods infoMethods for storing different data on different nodesyeshorizontal partitioningShardingShardingshared disk or shared nothing architectures with SAP IQ Multiplexer
Replication methods infoMethods for redundantly storing data on multiple nodesSynchronous replication via RaftSource-replica replicationyesyes, with selectable consistency levelSAP/Sybase Replication Server
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infosimilar paradigm used for internal processingnonoHadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Immediate Consistency
Foreign keys infoReferential integritynoyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnonoconfigurableACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes infooptionallyyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyesno
User concepts infoAccess controlno infoPlanned for future releasesrights management via user accountsAdministrators and common users accountsauthentification to access the cache via certificates or http basic authenticationfine grained access rights according to SQL-standard
More information provided by the system vendor
DgraphKdbopenGeminiOracle CoherenceSAP IQ infoformer name: Sybase IQ
Specific characteristicsIntegrated columnar database & programming system for streaming, real time and historical...
» more
Competitive advantagesprovides seamless scalability; runs on industry standard server platforms; is top-ranked...
» more
Typical application scenariostick database streaming sensor data massive intelligence applications oil and gas...
» more
Key customersGoldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
» more
Market metricskdb+ performance and reliability proven by our customers in critical infrastructure...
» more
Licensing and pricing modelsupon request
» more

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DgraphKdbopenGeminiOracle CoherenceSAP IQ infoformer name: Sybase IQ
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