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DBMS > DolphinDB vs. Graphite vs. HarperDB vs. ToroDB

System Properties Comparison DolphinDB vs. Graphite vs. HarperDB vs. ToroDB

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Editorial information provided by DB-Engines
NameDolphinDB  Xexclude from comparisonGraphite  Xexclude from comparisonHarperDB  Xexclude from comparisonToroDB  Xexclude from comparison
ToroDB seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionDolphinDB is a high performance Time Series DBMS. It is integrated with an easy-to-use fully featured programming language and a high-volume high-velocity streaming analytics system. It offers operational simplicity, scalability, fault tolerance, and concurrency.Data logging and graphing tool for time series data infoThe storage layer (fixed size database) is called WhisperHarperDB takes the "stack" out of "tech stack" by combining an ultra-fast document-style data store, in-memory cache, real-time message broker, and your application components into a single distributed technology.A MongoDB-compatible JSON document store, built on top of PostgreSQL
Primary database modelTime Series DBMS
Vector DBMS
Time Series DBMSDocument storeDocument store
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.72
Rank#100  Overall
#8  Time Series DBMS
#5  Vector DBMS
Score5.19
Rank#62  Overall
#4  Time Series DBMS
Score0.55
Rank#243  Overall
#38  Document stores
Websitewww.dolphindb.comgithub.com/­graphite-project/­graphite-webwww.harperdb.iogithub.com/­torodb/­server
Technical documentationdocs.dolphindb.cn/­en/­help200/­index.htmlgraphite.readthedocs.iodocs.harperdb.io/­docs
DeveloperDolphinDB, IncChris DavisHarperDB8Kdata
Initial release2018200620172016
Current releasev2.00.4, January 20223.1, August 2021
License infoCommercial or Open Sourcecommercial infofree community version availableOpen Source infoApache 2.0commercial infofree community edition availableOpen Source infoAGPL-V3
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++PythonNode.jsJava
Server operating systemsLinux
Windows
Linux
Unix
Linux
OS X
All OS with a Java 7 VM
Data schemeyesyesdynamic schemaschema-free
Typing infopredefined data types such as float or dateyesNumeric data onlyyes infoJSON data typesyes infostring, integer, double, boolean, date, object_id
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.nononono
Secondary indexesyesnoyes
SQL infoSupport of SQLSQL-like query languagenoSQL-like data manipulation statements
APIs and other access methodsJDBC
JSON over HTTP
Kafka
MQTT (Message Queue Telemetry Transport)
ODBC
OPC DA
OPC UA
RabbitMQ
WebSocket
HTTP API
Sockets
JDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
Supported programming languagesC#
C++
Go
Java
JavaScript
MatLab
Python
R
Rust
JavaScript (Node.js)
Python
.Net
C
C#
C++
ColdFusion
D
Dart
Delphi
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Lisp
MatLab
Objective C
Perl
PHP
PowerShell
Prolog
Python
R
Ruby
Rust
Scala
Swift
Server-side scripts infoStored proceduresyesnoCustom Functions infosince release 3.1
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningnoneA table resides as a whole on one (or more) nodes in a clusterSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesnoneyes infothe nodes on which a table resides can be definedSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesnoAtomic execution of specific operationsno
Concurrency infoSupport for concurrent manipulation of datayesyes infolockingyesyes
Durability infoSupport for making data persistentyesyesyes, using LMDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlAdministrators, Users, GroupsnoAccess rights for users and rolesAccess rights for users and roles

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More resources
DolphinDBGraphiteHarperDBToroDB
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