DB-EnginesInfluxDB: Focus on building software with an easy-to-use serverless, scalable time series platformEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > EXASOL vs. HarperDB vs. RDF4J

System Properties Comparison EXASOL vs. HarperDB vs. RDF4J

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameEXASOL  Xexclude from comparisonHarperDB  Xexclude from comparisonRDF4J infoformerly known as Sesame  Xexclude from comparison
DescriptionHigh-performance, in-memory, MPP database specifically designed for in-memory analytics.A distributed database focused on speed and ease of use. It has an intuitive REST API, and supports NoSQL and SQL including joins. HarperDB leverages standard interfaces, and users can be up and running in minutes.RDF4J is a Java framework for processing RDF data, supporting both memory-based and a disk-based storage.
Primary database modelRelational DBMSDocument storeRDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score4.02
Rank#84  Overall
#46  Relational DBMS
Score0.77
Rank#200  Overall
#31  Document stores
Score0.66
Rank#217  Overall
#9  RDF stores
Websitewww.exasol.comharperdb.iordf4j.org
Technical documentationwww.exasol.com/­resourcesharperdb.io/­developers/­documentation/­overviewrdf4j.org/­documentation
DeveloperExasolHarperDBSince 2016 officially forked into an Eclipse project, former developer was Aduna Software.
Initial release200020172004
Current release3.1, August 2021
License infoCommercial or Open Sourcecommercialcommercial infofree community edition availableOpen Source infoEclipse Distribution License (EDL), v1.0.
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
HarperDB Cloud: Get To Market Faster, For Less Money Using Our Built-in API.
Implementation languageNode.jsJava
Server operating systemsLinux
OS X
Linux
OS X
Unix
Windows
Data schemeyesdynamic schemayes infoRDF Schemas
Typing infopredefined data types such as float or dateyesyes infoJSON data typesyes
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.nono
Secondary indexesyesyesyes
SQL infoSupport of SQLyesSQL-like data manipulation statementsno
APIs and other access methods.Net
JDBC
ODBC
WebSocket
JDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
Java API
RIO infoRDF Input/Output
Sail API
SeRQL infoSesame RDF Query Language
Sesame REST HTTP Protocol
SPARQL
Supported programming languagesJava
Lua
Python
R
.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
Java
PHP
Python
Server-side scripts infoStored proceduresuser defined functionsCustom Functions infosince release 3.1yes
Triggersyesnoyes
Partitioning methods infoMethods for storing different data on different nodesShardingA table resides as a whole on one (or more) nodes in a clusternone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infothe nodes on which a table resides can be definednone
MapReduce infoOffers an API for user-defined Map/Reduce methodsyes infoHadoop integrationnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDAtomic execution of specific operationsACID infoIsolation support depends on the API used
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes, using LMDByes infoin-memory storage is supported as well
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlAccess rights for users, groups and roles according to SQL-standardAccess rights for users and rolesno
More information provided by the system vendor
EXASOLHarperDBRDF4J infoformerly known as Sesame
Specific characteristicsHarperDB is the first distributed database with hybrid SQL & NoSQL functionality...
» more
Competitive advantagesBy combining the functionality of the best SQL, NoSQL, and NewSQL products on the...
» more
Typical application scenariosUse cases where HarperDB is a better fit than other solutions include: Rapid app...
» more
Key customersA few highlighted customers include: US Army, US Airforce, Chelan PUD, TATA, & Lumen....
» more
Market metrics6,800 + npm downloads 1,600 + on Docker Hub 2,600 + cloud & local signups
» more
Licensing and pricing modelsHarperDB follows a freemium/premium model . A database is only as powerful as it...
» more

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
EXASOLHarperDBRDF4J infoformerly known as Sesame
Recent citations in the news

Exasol Appoints Donald Kaye as Chief Commercial Officer
15 September 2021, Business Wire

United States Main Memory Database System Market Size, Growth And Analysis By Leading Keyplayers – SAP, MenSQL, EXASOL, Oracle, ENEA, Kognitio, Altibase – Stillwater Current
20 September 2021, Stillwater Current

Exasol Achieves ISO 9001:2015 Quality Certification
25 August 2021, Marketscreener.com

STATWARS seeks to inspire nextgen data specialists
10 September 2021, Education Technology

Pharmascience to use Exasol database to improve reporting - Healthcare Global
15 February 2021, Healthcare News, Magazine and Website

provided by Google News

No decision on Saquon Barkley for week 1 as Giants weapons return to practice
31 August 2021, New York Post

HarperDB Releases HarperDB Cloud
22 April 2020, PRNewswire

HarperDB: An underdog SQL / NoSQL database
7 February 2018, ZDNet

Database Management Software Market Size, Trends, and Key Players – RingLead, MongoDB, Redis Enterprise, SingleStore.com, Teradata Vantage, SAP HANA, HarperDB, Couchbase Server, Worksheet Systems
4 September 2021, The Manomet Current

HarperDB: It’s all about the (open) DBaaS
20 July 2020, ComputerWeekly.com

provided by Google News

GraphDB 9.5 Offers Data Virtualization From Tables to Graphs and Back
9 December 2020, PRNewswire

GraphDB 9.8 Brings Text Mining and Kafka Connectivity
2 June 2021, PRNewswire

Big data database Apache Rya becomes a Top Level Project
10 October 2019, JAXenter

GraphDB Goes Open Source
27 January 2020, iProgrammer

Ontotext's GraphDB 9.2 Supports RDF* to Match the Expressivity of Property Graphs
30 April 2020, PRNewswire

provided by Google News

Job opportunities

Database Support Engineer
Exasol, United States

Linux Services Consultant
Exasol, United States

Manager, Global Email Marketing
Exasol, United States

Database Consultant
Exasol, Remote

Senior Data Engineer
Verizon, Alpharetta, GA

jobs by Indeed



Share this page

Featured Products

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Vertica logo

The fastest unified analytical warehouse at extreme scale with in-database machine learning. Try Vertica for free with no time limit.

Couchbase logo

The modern database for enterprise applications. Build fast. Scale Big. Save more.
Get started today.

Neo4j logo

See for yourself how a graph database can make your life easier.
Use Neo4j online for free.

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 5 GB free..

Present your product here