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 > Apache Jena - TDB vs. Dgraph vs. HarperDB vs. PostgreSQL

System Properties Comparison Apache Jena - TDB vs. Dgraph vs. HarperDB vs. PostgreSQL

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameApache Jena - TDB  Xexclude from comparisonDgraph  Xexclude from comparisonHarperDB  Xexclude from comparisonPostgreSQL  Xexclude from comparison
DescriptionA RDF storage and query DBMS, shipped as an optional-use component of the Apache Jena frameworkDistributed and scalable native Graph DBMSA 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.Widely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
Primary database modelRDF storeGraph DBMSDocument storeRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.02
Rank#102  Overall
#3  RDF stores
Score1.54
Rank#143  Overall
#11  Graph DBMS
Score0.52
Rank#238  Overall
#37  Document stores
Score615.29
Rank#4  Overall
#4  Relational DBMS
Websitejena.apache.org/­documentation/­tdb/­index.htmldgraph.ioharperdb.iowww.postgresql.org
Technical documentationjena.apache.org/­documentation/­tdb/­index.htmldgraph.io/­docsharperdb.io/­developers/­documentation/­overviewwww.postgresql.org/­docs
DeveloperApache Software Foundation infooriginally developed by HP LabsDgraph Labs, Inc.HarperDBPostgreSQL Global Development Group infowww.postgresql.org/­developer
Initial release2000201620171989 info1989: Postgres, 1996: PostgreSQL
Current release4.3.2, December 20213.1, August 202114.3, May 2022
License infoCommercial or Open SourceOpen Source infoApache License, Version 2.0Open Source infoApache 2.0commercial infofree community edition availableOpen Source infoBSD
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.
ScaleGrid for PostgreSQL: Fully managed PostgreSQL hosting on AWS, Azure and DigitalOcean with high availability and SSH access on the #1 multi-cloud DBaaS.
Implementation languageJavaGoNode.jsC
Server operating systemsAll OS with a Java VMLinux
OS X
Windows
Linux
OS X
FreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Data schemeyes infoRDF Schemasschema-freedynamic schemayes
Typing infopredefined data types such as float or dateyesyesyes 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.nonoyes infospecific XML-type available, but no XML query functionality.
Secondary indexesyesyesyesyes
SQL infoSupport of SQLnonoSQL-like data manipulation statementsyes infostandard with numerous extensions
APIs and other access methodsFuseki infoREST-style SPARQL HTTP Interface
Jena RDF API
RIO infoRDF Input/Output
GraphQL query language
gRPC (using protocol buffers) API
HTTP API
JDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languagesJavaC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.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
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresyesnoCustom Functions infosince release 3.1user defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Triggersyes infovia event handlernonoyes
Partitioning methods infoMethods for storing different data on different nodesnoneyesA table resides as a whole on one (or more) nodes in a clusterpartitioning by range, list and (since PostgreSQL 11) by hash
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSynchronous replication via Raftyes infothe nodes on which a table resides can be definedSource-replica replication infoother methods possible by using 3rd party extensions
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoTDB TransactionsACIDAtomic execution of specific operationsACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
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.yesno
User concepts infoAccess controlAccess control via Jena Securityno infoPlanned for future releasesAccess rights for users and rolesfine grained access rights according to SQL-standard
More information provided by the system vendor
Apache Jena - TDBDgraphHarperDBPostgreSQL
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 metricsOver 26K total HarperDB users : 12,700+ npm downloads 10,000+ on Docker Hub 3,400+...
» more
Licensing and pricing modelsHarperDB follows a freemium/premium model . A data base 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
3rd partiesPercona: Database problems? Not on your watch.
Databases run better with Percona.
» more

CYBERTEC is your professional partner for PostgreSQL services and Data Science since 2000. With offices in Austria, Uruguay, Estonia, Poland, South Africa and Switzerland, CYBERTEC operates worldwide and is here for you 24/7!
» more

pgDash: In-Depth PostgreSQL Monitoring.
» more

EDB: BigAnimal is fully-managed PostgreSQL in the cloud from the database fanatics at EDB.
» more

Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
» more

SQLFlow: Provides a visual representation of the overall flow of data. Automated SQL data lineage analysis across Databases, ETL, Business Intelligence, Cloud and Hadoop environments by parsing SQL Script and stored procedure.
» more

Datasentinel: Platform for Monitoring and Analyzing the performance problems of your PostgreSQL Clusters
» more

Instaclustr: Fully Hosted & Managed PostgreSQL
» more

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

More resources
Apache Jena - TDBDgraphHarperDBPostgreSQL
DB-Engines blog posts

Snowflake is the DBMS of the Year 2021
3 January 2022, Paul Andlinger, Matthias Gelbmann

Driving the Future of PostgreSQL Adoption
15 November 2021,  Umair Shahid, Percona (sponsor) 

The Inexorable Rise of PostgreSQL
24 September 2021,  Matt Yonkovit, Percona (sponsor) 

show all

Recent citations in the news

Security Bulletin 11 May 2022
11 May 2022, Cyber Security Agency of Singapore

There's a NoSQL Database for That
22 July 2021, Datanami

The Apache® Software Foundation Welcomes its Global Community Online at ApacheCon@Home
21 September 2020, GlobeNewswire

provided by Google News

Dgraph GraphQL database users detail graph use cases
20 April 2021, TechTarget

Dgraph Rises to the Top Graph Database on GitHub With 11 G2 Badges and 11M Downloads
26 May 2021, Business Wire

Dgraph launches Slash GraphQL, a GraphQL-native database Backend-as-a-Service
10 September 2020, TechCrunch

Gary Hagmueller Joins Dgraph Labs To Lead the Graph Platform Market Disruption
8 April 2021, Business Wire

Dgraph raises $11.5 million for scalable graph database solutions
31 July 2019, VentureBeat

provided by Google News

Jaxon Repp on HarperDB Distributed Database Platform
23 March 2022, InfoQ.com

HarperDB Releases HarperDB Cloud
22 April 2020, PR Newswire

Build a Hacker News Clone using React and HarperDB
18 October 2021, SitePoint

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

HarperDB - How and Why We Built It From The Ground Up on NodeJS
28 February 2021, hackernoon.com

provided by Google News

Google Cloud Introduces PostgreSQL-Compatible AlloyDB for Enterprise Database Workloads
21 May 2022, InfoQ.com

First beta for PostgreSQL 15 now available
19 May 2022, SDTimes.com

Review: YugabyteDB does PostgreSQL proud
16 May 2022, InfoWorld

Install PostgreSQL Server & Client on Ubuntu 22.04 LTS Jammy
10 May 2022, Linux Shout

Microsoft Azure Vulnerability Exposes PostgreSQL Databases to Other Customers
28 April 2022, The Hacker News

provided by Google News

Job opportunities

Research Engineer for Natural Language Processing and Knowledge Engineering
Bosch Group, Sunnyvale, CA

Data Discovery Developer - Scientific Computing & Data
Mount Sinai, New York, NY

Artificial Intelligence Developer
BLH Technologies, Inc., Rockville, MD

Analytic Developer
GliaCell Technologies, Hanover, MD

Senior Manager, Software Engineering DevSecOps
Thermo Fisher Scientific, Carlsbad, CA

C# Backend Developer
PIN Business Network, Englewood, CO

Senior Software Engineer
Codenotary, Remote

Database Administrator
DataLink Fund Solutions, Tampa, FL

Senior Software Engineer (CLI)
Codenotary, Remote

eCommerce Engineer
PIN Business Network, Englewood, CO

VP Engineering
HarperDB, Denver, CO

Sales & Customer Success Engineer
HarperDB, Denver, CO

Cloud Platform Software Engineer
HarperDB, Denver, CO

PostgreSQL Database Administrator
Xtivia Inc, Remote

PostgreSQL Database Administrator
General Motors, Austin, TX

Senior PostgreSQL DBA
HEB, Dallas, TX

Overnight SQL Database Administrator
Xtivia Inc, Remote

Junior Developer
Paradyme Management, Washington, DC

jobs by Indeed



Share this page

Featured Products

AllegroGraph logo

Graph Database Leader for AI Knowledge Graph Applications - The Most Secure Graph Database Available.
Free Download

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

The definitive guide for Cassandra

Imagine What You Could Do if Scalability Wasn‘t a Problem!
Download the Cassandra e-book for free!

Neo4j logo

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

Redis logo

The world’s most loved real‑time data platform.
Try free

Present your product here