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DBMS > Amazon Aurora vs. Citus vs. Microsoft Azure Cosmos DB

System Properties Comparison Amazon Aurora vs. Citus vs. Microsoft Azure Cosmos DB

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Editorial information provided by DB-Engines
NameAmazon Aurora  Xexclude from comparisonCitus  Xexclude from comparisonMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparison
DescriptionMySQL and PostgreSQL compatible cloud service by AmazonScalable hybrid operational and analytics RDBMS for big data use cases based on PostgreSQLGlobally distributed, horizontally scalable, multi-model database service
Primary database modelRelational DBMSRelational DBMSDocument store
Graph DBMS
Key-value store
Wide column store
Secondary database modelsDocument storeDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score9.30
Rank#44  Overall
#27  Relational DBMS
Score1.27
Rank#151  Overall
#75  Relational DBMS
Score32.01
Rank#25  Overall
#3  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Websiteaws.amazon.com/­rds/­aurorawww.citusdata.comazure.microsoft.com/­services/­cosmos-db
Technical documentationdocs.aws.amazon.com/­AmazonRDS/­latest/­AuroraUserGuide/­CHAP_Aurora.htmldocs.citusdata.comdocs.microsoft.com/­azure/­cosmos-db
DeveloperAmazonMicrosoft
Initial release201520102014
Current release8.1, December 2018
License infoCommercial or Open SourcecommercialOpen Source infoAGPL, commercial license also availablecommercial
Cloud-based only infoOnly available as a cloud serviceyesnoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC
Server operating systemshostedLinuxhosted
Data schemeyesyesschema-free
Typing infopredefined data types such as float or dateyesyesyes infoJSON types
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.yesyes infospecific XML type available, but no XML query functionality
Secondary indexesyesyesyes infoAll properties auto-indexed by default
SQL infoSupport of SQLyesyes infostandard, with numerous extensionsSQL-like query language
APIs and other access methodsADO.NET
JDBC
ODBC
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
DocumentDB API
Graph API (Gremlin)
MongoDB API
RESTful HTTP API
Table API
Supported programming languagesAda
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
.Net
C
C++
Delphi
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
Server-side scripts infoStored proceduresyesuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.JavaScript
TriggersyesyesJavaScript
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningShardingSharding infoImplicit feature of the cloud service
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationSource-replica replication infoother methods possible by using 3rd party extensionsyes infoImplicit feature of the cloud service
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonowith Hadoop integration infoIntegration with Hadoop/HDInsight on Azure*
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyBounded Staleness
Consistent Prefix
Eventual Consistency
Immediate Consistency infoConsistency level configurable on request level
Session Consistency
Foreign keys infoReferential integrityyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDMulti-item ACID transactions with snapshot isolation within a partition
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlfine grained access rights according to SQL-standardfine grained access rights according to SQL-standardAccess rights can be defined down to the item level

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More resources
Amazon AuroraCitusMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB
DB-Engines blog posts

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Recent citations in the news

Amazon Aurora Doubles Maximum RDBS Storage Size to 128TB
14 October 2020, AiThority

In a shot at Oracle, Amazon touts 300000 database migrations
15 October 2020, SiliconANGLE News

Safehub Collaborates with AWS to Speed Insights from IoT Sensors Tracking Earthquake Damage
13 October 2020, PR Web

Amazon Timestream database is now generally available
1 October 2020, ZDNet

What is Amazon Aurora?
23 December 2019, TechRadar

provided by Google News

Database Software Market is Projected to Reach $146.6 billion in 2020 | Leading key players are Oracle, Microsoft, IBM, SAP, Amazon, Redis, Teradata, Couch base, SQLite, MongoDB
5 October 2020, The Daily Chronicle

Microsoft acquires Citus Data for its open source PostgreSQL tool
24 January 2019, VentureBeat

Microsoft Expands Azure PostgreSQL Moxy Through Citus Data Purchase
30 January 2019, Data Center Knowledge

Citus Data Announces Citus Cloud Database Support for HIPAA and SOC 2 Type 2 Compliance
13 November 2018, Business Wire

Citus Data Announces HIPAA-Compliant Healthcare Cloud
13 November 2018, HITInfrastructure.com

provided by Google News

Using Entity Framework Core with Azure SQL DB and Azure Cosmos DB | Azure Friday - Microsoft
23 October 2020, Channel 9

Azure Cosmos DB Archives
29 October 2020, Stock Market Vista

Microsoft named a Leader in the Gartner 2020 Magic Quadrant for Industrial IoT Platforms
29 October 2020, Microsoft

NoSQL Databases Software Market to Witness Robust Growth | MongoDB,Amazon,ArangoDB,Azure Cosmos DB,Couchbase,MarkLogic,RethinkDB,CouchDB,SQL-RD,OrientDB,RavenDB,Redis
28 October 2020, Aerospace Journal

COVID-19 Update: Global Document Databases Software Market is Expected to Grow at a Healthy CAGR with Top players: MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase, etc. | InForGrowth
29 October 2020, PRnews Leader

provided by Google News

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