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DBMS > DolphinDB vs. EventStoreDB vs. Graph Engine vs. Newts

System Properties Comparison DolphinDB vs. EventStoreDB vs. Graph Engine vs. Newts

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Editorial information provided by DB-Engines
NameDolphinDB  Xexclude from comparisonEventStoreDB  Xexclude from comparisonGraph Engine infoformer name: Trinity  Xexclude from comparisonNewts  Xexclude from comparison
DescriptionTime Series DBMS for big data, integrated with a lightweight distributed computing framework and a vector programming languageIndustrial-strength, open-source database solution built from the ground up for event sourcing.A distributed in-memory data processing engine, underpinned by a strongly-typed RAM store and a general distributed computation engineTime Series DBMS based on Cassandra
Primary database modelTime Series DBMSEvent StoreGraph DBMS
Key-value store
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.04
Rank#173  Overall
#11  Time Series DBMS
Score0.98
Rank#177  Overall
#1  Event Stores
Score0.83
Rank#189  Overall
#17  Graph DBMS
#31  Key-value stores
Score0.00
Rank#353  Overall
#33  Time Series DBMS
Websitewww.dolphindb.comwww.eventstore.comwww.graphengine.ioopennms.github.io/­newts
Technical documentationwww.dolphindb.com/­helpdevelopers.eventstore.comwww.graphengine.io/­docs/­manualgithub.com/­OpenNMS/­newts/­wiki
DeveloperDolphinDB, IncEvent Store LimitedMicrosoftOpenNMS Group
Initial release2018201220102014
Current release21.2, February 2021
License infoCommercial or Open Sourcecommercial infofree community version availableOpen SourceOpen Source infoMIT LicenseOpen Source infoApache 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++.NET and CJava
Server operating systemsLinux
Windows
Linux
Windows
.NETLinux
OS X
Windows
Data schemeyesschema-free
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 indexesnono
SQL infoSupport of SQLSQL-like query languagenono
APIs and other access methodsJDBC
ODBC
RESTful HTTP APIHTTP REST
Java API
Supported programming languagesC#
C++
Java
JavaScript
Python
R
C#
C++
F#
Visual Basic
Java
Server-side scripts infoStored proceduresyesyesno
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioninghorizontal partitioningSharding infobased on Cassandra
Replication methods infoMethods for redundantly storing data on multiple nodesyesselectable replication factor infobased on Cassandra
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesnono
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesoptional: either by committing a write-ahead log (WAL) to the local persistent storage or by dumping the memory to a persistent storageyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesno
User concepts infoAccess controlAdministrators, Users, Groupsno

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More resources
DolphinDBEventStoreDBGraph Engine infoformer name: TrinityNewts
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