DB-EnginesExtremeDB Active Replication featuresEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > eXtremeDB vs. FatDB vs. PostgreSQL vs. RavenDB

System Properties Comparison eXtremeDB vs. FatDB vs. PostgreSQL vs. RavenDB

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameeXtremeDB  Xexclude from comparisonFatDB  Xexclude from comparisonPostgreSQL  Xexclude from comparisonRavenDB  Xexclude from comparison
FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
DescriptionNatively in-memory DBMS with options for persistency, high-availability and clusteringA .NET NoSQL DBMS that can integrate with and extend SQL Server.Widely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQLOpen Source Operational and Transactional Enterprise NoSQL Document Database
Primary database modelRelational DBMS
Time Series DBMS
Document store
Key-value store
Relational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.Document store
Secondary database modelsDocument storeGraph DBMS infoexperimental
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.71
Rank#202  Overall
#102  Relational DBMS
#13  Time Series DBMS
Score549.29
Rank#4  Overall
#4  Relational DBMS
Score3.25
Rank#89  Overall
#16  Document stores
Websitewww.mcobject.com/­extremedbfamilywww.postgresql.orgravendb.net
Technical documentationwww.mcobject.com/­docs/­extremedb.htmwww.postgresql.org/­docsravendb.net/­docs
DeveloperMcObjectFatCloudPostgreSQL Global Development Group infowww.postgresql.org/­developerHibernating Rhinos
Initial release200120121989 info1989: Postgres, 1996: PostgreSQL2010
Current release8.2, November 202013.2 , February 20215.1, November 2020
License infoCommercial or Open SourcecommercialcommercialOpen Source infoBSDOpen Source infoAGPL version 3, commercial license available
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.
eXtremeDB on AWS: High performance DBMS for HPC and Capital Market computingScaleGrid for PostgreSQL: Fully managed PostgreSQL hosting on AWS, Azure and DigitalOcean with high availability and SSH access on the #1 multi-cloud DBaaS.RavenDB Cloud: Deploy a fully managed RavenDB Cloud Database in minutes on AWS, Azure, and GCP. HIPPA compliant. Enjoy a globally distributed cluster with enterprise-grade security and reduce cloud storage costs by 50% with Native data compression.
Implementation languageC and C++C#CC#
Server operating systemsAIX
HP-UX
Linux
macOS
Solaris
Windows
WindowsFreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Linux
macOS
Raspberry Pi
Windows
Data schemeyesschema-freeyesschema-free
Typing infopredefined data types such as float or dateyesyesyesno
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.no infosupport of XML interfaces availableyes infospecific XML-type available, but no XML query functionality.
Secondary indexesyesyesyesyes
SQL infoSupport of SQLyes infowith the option: eXtremeSQLno infoVia inetgration in SQL Serveryes infostandard with numerous extensionsSQL-like query language (RQL)
APIs and other access methods.NET Client API
JDBC
JNI
ODBC
Proprietary protocol
RESTful HTTP API
.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
.NET Client API
Java Client API
Python Client API
RESTful HTTP API
Supported programming languages.Net
C
C#
C++
Java
Lua
Python
Scala
C#.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
.Net
C#
Go
Java
JavaScript (Node.js)
Python
Ruby
Server-side scripts infoStored proceduresyesyes infovia applicationsuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.yes
Triggersyes infoby defining eventsyes infovia applicationsyesyes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning / shardingShardingpartitioning by range, list and (since PostgreSQL 11) by hashSharding
Replication methods infoMethods for redundantly storing data on multiple nodesActive Replication Fabric™ for IoT
Multi-source replication infoby means of eXtremeDB Cluster option
Source-replica replication infoby means of eXtremeDB High Availability option
selectable replication factorSource-replica replication infoother methods possible by using 3rd party extensionsMulti-source replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnoyes infoMapReduce functions can be defined in Linq
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency
Immediate ConsistencyEventual Consistency
Foreign keys infoReferential integrityyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDACID, Cluster-wide transaction available
Concurrency infoSupport for concurrent manipulation of datayes infoOptimistic (MVCC) and pessimistic (locking) strategies availableyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlno infoCan implement custom security layer via applicationsfine grained access rights according to SQL-standardAccess control on document level using the Authorization Bundle
More information provided by the system vendor
eXtremeDBFatDBPostgreSQLRavenDB
Specific characteristicseXtremeDB is an in-memory and/or persistent database system that offers an ultra-small...
» more
RavenDB is the pioneer NoSQL Document Database that is fully transactional (ACID)...
» more
Competitive advantageseXtremeDB databases can be modeled relationally or as objects and can utilize SQL...
» more
RavenDB is easy to setup and secure. You can do it in a matter of minutes . Easy...
» more
Typical application scenariosIoT application across all markets: Industrial Control, Netcom, Telecom, Defense,...
» more
IoT for Edge Deployments Fraud Detection Recommendation Engines Product Catalogs...
» more
Key customersSchneider Electronics, F5 Networks, TNS, Boeing, Northrop Grumman, GoPro, ViaSat,...
» more
Toyota, Capgemini, Vodafone, Medicaid, Asos, Nomura, RMS Automotive, MSNBC, Pluralsight,...
» more
Market metricsWith hundreds of customers and over 28 million devices/applications using the product...
» more
2 million+ downloads 1000+ customers including Fortune 500 large enterprises
» more
Licensing and pricing modelsFor server use cases, there is a simple per-server license irrespective of the number...
» more
RavenDB is available on-premise and in the cloud. RavenDB Cloud is available on AWS...
» 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 partiespgDash: In-Depth PostgreSQL Monitoring.
» more

General SQL Parser: Instantly adding parsing, decoding, analysis and rewrite SQL processing capability to your products.
» more

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

ClusterControl: the only management system you’ll ever need to take control of your open source database infrastructure.
» 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

EDB: Helping organizations get the most from PostgreSQL, Oracle Migration, High Availability, Security
» more

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

More resources
eXtremeDBFatDBPostgreSQLRavenDB
DB-Engines blog posts

PostgreSQL is the DBMS of the Year 2020
4 January 2021, Paul Andlinger, Matthias Gelbmann

PostgreSQL is the DBMS of the Year 2018
2 January 2019, Paul Andlinger, Matthias Gelbmann

PostgreSQL is the DBMS of the Year 2017
2 January 2018, Paul Andlinger, Matthias Gelbmann

show all

Recent citations in the news

It's simple to grow, adapt and innovate when you start with the best in-memory database management system
25 February 2021, GlobeNewswire

McObject and Logic Partner to Meet Growing Embedded Database Management Needs
23 February 2021, GlobeNewswire

eXtremeDB 8.1 adds features for easier, more sophisticated database management
19 November 2019, GlobeNewswire

“Above the Trend Line” – Your Industry Rumor Central for 2/23/2021
23 February 2021, insideBIGDATA

Demand more control from a database management system
19 August 2020, GlobeNewswire

provided by Google News

New Monitoring Features in PostgreSQL 13
26 February 2021, DevOps.com

AWS Announces Amazon Aurora Supports PostgreSQL 12 (infoq.com)
7 February 2021, InfoQ.com

AWS and Rackspace Lose 700 PostgreSQL Databases to Oracle Autonomous Database
25 February 2021, Cloud Wars

EDB Caps Successful Year of Hypergrowth
18 February 2021, Business Wire

Global Relational Databases Software Market 2021 – Microsoft, MySQL, Oracle, SAP, PostgreSQL – KSU | The Sentinel Newspaper
3 March 2021, KSU | The Sentinel Newspaper

provided by Google News

How to create a new database with RavenDB
6 January 2021, TechRepublic

Article: Interview with RavenDB Founder Oren Eini
31 August 2020, InfoQ.com

How to install the RavenDB NoSQL database on Ubuntu 20.04
20 October 2020, TechRepublic

RavenDB 5 Improves Distributed Time-Series, Document Compression, and Indexing
3 August 2020, InfoQ.com

Operational Database Management Systems (OPDBMS) Software Industry Market R & D including top key players Oracle, RavenDB, EnterpriseOB, DataStax – SoccerNurds
4 March 2021, SoccerNurds

provided by Google News

Job opportunities

Devops Engineer
LT Technology Services, Houston, TX

Jr. QA Analyst Trainee
SQA², Los Alamitos, CA

PostgreSQL DBA
Aspect Software Inc, Remote

Node.js Developer
Aiteq, Remote

Software Engineer
WinIt, Remote

PostgreSQL DBA
West Advanced Technologies (WATI), Downey, CA

PHP Developer
Mindfire Technology, Layton, UT

.NET Integration Developer
Medical Specialties Managers (MSM), Remote

Sharepoint Developer
Kinect, Seattle, WA

.NET Integration Developer
Medical Specialties Managers, Inc., Remote

Software Developer
Bobit Business Media, Torrance, CA

jobs by Indeed




Share this page

Featured Products

Neo4j logo

Get your free copy of the new O'Reilly book Graph Algorithms with 20+ examples for
machine learning, graph analytics and more.

Couchbase logo

SQL + JSON + NoSQL.
Power, flexibility & scale.
All open source.
Get started now.

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..

Vertica logo

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

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Present your product here