DB-EnginesExtremeDB: the first and only COTS deterministic embedded database management system for mission- and safety-critical hard real-time applicationsEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > Alibaba Cloud ApsaraDB for PolarDB vs. Dgraph vs. Elasticsearch vs. NuoDB vs. Realm

System Properties Comparison Alibaba Cloud ApsaraDB for PolarDB vs. Dgraph vs. Elasticsearch vs. NuoDB vs. Realm

Editorial information provided by DB-Engines
NameAlibaba Cloud ApsaraDB for PolarDB  Xexclude from comparisonDgraph  Xexclude from comparisonElasticsearch  Xexclude from comparisonNuoDB  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionA cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Designed for business critical applications.Distributed and scalable native Graph DBMSA distributed, RESTful modern search and analytics engine based on Apache Lucene infoElasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metricNuoDB is a webscale distributed database that supports SQL and ACID transactionsA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data
Primary database modelRelational DBMSGraph DBMSSearch engineRelational DBMSDocument store
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.63
Rank#216  Overall
#105  Relational DBMS
Score1.51
Rank#139  Overall
#11  Graph DBMS
Score160.75
Rank#8  Overall
#1  Search engines
Score1.00
Rank#176  Overall
#86  Relational DBMS
Score9.59
Rank#49  Overall
#7  Document stores
Websitewww.alibabacloud.com/­product/­polardbdgraph.iowww.elastic.co/­elasticsearchnuodb.comrealm.io
Technical documentationwww.alibabacloud.com/­help/­doc-detail/­58764.htmdgraph.io/­docswww.elastic.co/­guide/­en/­elasticsearch/­reference/­current/­index.htmldoc.nuodb.comrealm.io/­docs
DeveloperAlibabaDgraph Labs, Inc.ElasticNuoDB, Inc.Realm, acquired by MongoDB in May 2019
Initial release2016201020132014
Current release7.8.0, June 2020
License infoCommercial or Open SourcecommercialOpen Source infoApache 2.0Open Source infoApache Version 2; Elastic Licensecommercial infolimited edition freeOpen Source
Cloud-based only infoOnly available as a cloud serviceyesnononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoJavaC++
Server operating systemshostedLinux
OS X
Windows
All OS with a Java VMhosted infoAmazon EC2, Windows Azure, SoftLayer
Linux
OS X
Windows
Android
Backend: server-less
iOS
Windows
Data schemeyesschema-freeschema-free infoFlexible type definitions. Once a type is defined, it is persistentyesyes
Typing infopredefined data types such as float or dateyesyesyesyesyes
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.yesnononono
Secondary indexesyesyesyes infoAll search fields are automatically indexedyesyes
SQL infoSupport of SQLyesnoSQL-like query languageyesno
APIs and other access methodsJDBC
ODBC
GraphQL query language
gRPC (using protocol buffers) API
HTTP API
Java API
RESTful HTTP/JSON API
ADO.NET
JDBC
ODBC
Supported programming languagesJava
Python
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Groovy
Community Contributed Clients
Java
JavaScript
Perl
PHP
Python
Ruby
.Net
C
C++
Go
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresyesnoyesJava, SQLno inforuns within the applications so server-side scripts are unnecessary
Triggersyesnoyes infoby using the 'percolation' featureyesyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceyesShardingdata is dynamically stored/cached on the nodes where it is read/writtennone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceSynchronous replication via Raftyesyes infoManaged transparently by NuoDBnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoES-Hadoop Connectornono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency infoSynchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, allImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDnoACID infotunable commit protocolACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes infoMVCC
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesMemcached and Redis integrationyes infoTemporary tableyes infoIn-Memory realm
User concepts infoAccess controlfine grained access rights according to SQL-standardno infoPlanned for future releasesStandard SQL roles/ privileges, Administrative Usersyes
More information provided by the system vendor
Alibaba Cloud ApsaraDB for PolarDBDgraphElasticsearchNuoDBRealm
Specific characteristicsApsaraDB for PolarDB is a cloud-native relational database 100% compatible with MySQL...
» more
Now a part of MongoDB Data Platform , Realm Database is the fast, easy to use, and...
» more
Competitive advantagesWebinar: Top Scientists Live: Tech Secrets to Double 11's Success Revealed. White...
» more
Horizontally scalable transactional graph database with fast arbitrary-depth joins...
» more
Realm ensures offline-first functionality, meaning apps run smoothly and deliver...
» more
Typical application scenariosCreating a Robust Cloud-Based Database for Fintech, E-Commerce and Gaming. Learn...
» more
Mobile Consumer Apps First-Line Worker Apps
» more
Key customersCathay Pacific Royal Carribbean Cruise Lines Open Source Database powers apps built...
» more
Market metricsUsed by 100,000+ developers 2 bn installs Currently used in 40k+ applications in...
» more
Licensing and pricing modelsSpecification and pricing. You can use either of the following billing methods to...
» more
Realm database is licensed under the Apache License v2.0.
» 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
Alibaba Cloud ApsaraDB for PolarDBDgraphElasticsearchNuoDBRealm
DB-Engines blog posts

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

Elasticsearch moved into the top 10 most popular database management systems
3 July 2017, Matthias Gelbmann

MySQL, PostgreSQL and Redis are the winners of the March ranking
2 March 2016, Paul Andlinger

show all

Meet some database management systems you are likely to hear more about in the future
4 August 2014, Paul Andlinger

show all

MySQL, PostgreSQL and Redis are the winners of the March ranking
2 March 2016, Paul Andlinger

show all

Recent citations in the news

Alibaba Cloud’s growing clout in databases
21 January 2022, ComputerWeekly.com

Top Cloud Providers: Alibaba Cloud vs. AWS
6 October 2021, IT Business Edge

An introduction to Alibaba cloud offerings
28 September 2020, TechTarget

provided by Google News

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

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

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

Graph database reinvented: Dgraph secures $11.5M to pursue its unique and opinionated path
31 July 2019, ZDNet

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

provided by Google News

Elastic CEO reflects on Amazon spat, license switch, and the principles of open source
27 December 2021, VentureBeat

Elastic shares drop after co-founder of Banon steps down as CEO of software company
12 January 2022, CNBC

Qbox Joins Instaclustr, the Platform for Open Source Data
11 January 2022, GlobeNewswire

Getting Started with Python and InfluxDB – The New Stack
21 January 2022, thenewstack.io

Amazon’s Elasticsearch fork OpenSearch hits prime time
13 July 2021, VentureBeat

provided by Google News

Dassault Systèmes Announces the Acquisition of NuoDB, a Cloud-Native Distributed SQL Database Leader
25 November 2020, Business Wire

NuoDB 4.0 improves cloud-native database capabilities
31 July 2019, TechTarget

Dassault Systèmes Announces the Acquisition of NuoDB
3 December 2020, ARC Viewpoints

NuoDB Partners with Rancher Labs to Deliver a Cloud-native SQL Database Across Multi-Cloud Environments for Hong Kong FinTech Leader WeLab
19 November 2019, GlobeNewswire

Global Operational Database Management Systems (OPDBMS) Software Market 2021 Future Trend, Growth rate, Opportunity, Industry Analysis to 2027 – Discovery Sports Media
17 January 2022, Discovery Sports Media

provided by Google News

Realm Makes PostgreSQL Real-Time with New Connector
21 March 2017, Database Trends and Applications

On Point: Q&A with Lewis Shepherd | SIGNAL Magazine
1 June 2021, Signal Magazine

MongoDB Extends Cloud Lineup With New Database Release, Search And Mobile Tools
12 June 2020, CRN: Technology news for channel partners and solution providers

MongoDB Cloud Gives Developers An Escape From Data Silos With First-Ever Unified Cloud-To-Mobile Experience
9 June 2020, PRNewswire

Realm explains the benefits of realtime collaboration for mobile apps
24 October 2016, App Developer Magazine

provided by Google News

Job opportunities

Data Scientist, Senior
Booz Allen Hamilton, Annapolis Junction, MD

Senior QA Analyst - SaaS (REMOTE)
Leadr, Inc, Remote

Developer/Analyst, Senior (NJUS)
NetJets Services, Inc., Columbus, OH

Software Architect (REMOTE)
Leadr, Inc, Plano, TX

Innovation Lab Lead Developer - Cloud/AWS
NetJets Services, Inc., Columbus, OH

ElasticSearch Developer
ArthurPaige, Fort Meade, MD

Entry Level Software Engineer
RadarFirst, Remote

Staff Software Engineer- Datastores
Slack, San Francisco, CA

Software Engineer-All Levels
Comparenetworks Inc, Remote

Splunk Administrator
Excelraise, LLC, Clemson, SC

NuoDB Software Engineer
Dassault Systèmes, Cambridge, MA

Technical Writer -NuoDB
Dassault Systèmes, Waltham, MA

Software Engineer - iOS
Lyft, Seattle, WA

iOS Architecture Engineer
Lyft, San Francisco, CA

jobs by Indeed



Share this page

Featured Products

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.

Vertica logo

Vertica Accelerator. The fastest analytics and machine learning, delivered as SaaS, with automated setup, administration, and management. Free trial.

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 80GB free.

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Present your product here