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DBMS > Amazon Aurora vs. Google Cloud Spanner vs. Microsoft Azure Cosmos DB

System Properties Comparison Amazon Aurora vs. Google Cloud Spanner vs. Microsoft Azure Cosmos DB

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Editorial information provided by DB-Engines
NameAmazon Aurora  Xexclude from comparisonGoogle Cloud Spanner  Xexclude from comparisonMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparison
DescriptionMySQL and PostgreSQL compatible cloud service by AmazonA horizontally scalable, globally consistent, relational database service. It is the externalization of the core Google database that runs the biggest aspects of Google, like Ads and Google Play.Globally distributed, horizontally scalable, multi-model database service
Primary database modelRelational DBMSRelational DBMSDocument store
Graph DBMS
Key-value store
Wide column store
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score9.20
Rank#44  Overall
#27  Relational DBMS
Score2.79
Rank#105  Overall
#52  Relational DBMS
Score32.50
Rank#25  Overall
#3  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Websiteaws.amazon.com/­rds/­auroracloud.google.com/­spannerazure.microsoft.com/­services/­cosmos-db
Technical documentationdocs.aws.amazon.com/­AmazonRDS/­latest/­AuroraUserGuide/­CHAP_Aurora.htmlcloud.google.com/­spanner/­docsdocs.microsoft.com/­azure/­cosmos-db
DeveloperAmazonGoogleMicrosoft
Initial release201520172014
License infoCommercial or Open Sourcecommercialcommercialcommercial
Cloud-based only infoOnly available as a cloud serviceyesyesyes
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Server operating systemshostedhostedhosted
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.yesno
Secondary indexesyesyesyes infoAll properties auto-indexed by default
SQL infoSupport of SQLyesyes infoQuery statements complying to ANSI 2011SQL-like query language
APIs and other access methodsADO.NET
JDBC
ODBC
gRPC (using protocol buffers) API
JDBC infoAt present, JDBC supports read-only queries. No support for DDL or DML statements.
RESTful HTTP API
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
Go
Java
JavaScript (Node.js)
Python
.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
Server-side scripts infoStored proceduresyesnoJavaScript
TriggersyesnoJavaScript
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 replicationMulti-source replication with 3 replicas for regional instances.yes infoImplicit feature of the cloud service
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infousing Google Cloud Dataflowwith 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 integrityyesyes infoby using interleaved tables, this features focuses more on performance improvements than on referential integrityno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID infoStrict serializable isolationMulti-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-standardAccess rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)Access rights can be defined down to the item level

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More resources
Amazon AuroraGoogle Cloud SpannerMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB
DB-Engines blog posts

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7 February 2017, Matthias Gelbmann

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3 August 2015, Matthias Gelbmann

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Recent citations in the news

Google Launches a New Serverless Database Migration Service
21 November 2020, InfoQ.com

Standard Chartered Selects AWS to Power Its Strategic Banking Systems and Workloads
11 November 2020, Business Wire

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

AWS wins Standard Chartered |
17 November 2020, bankinnovation.net

Standard Chartered Partners With Amazon Web Services to Deliver New Digital Transformation
14 November 2020, The Fintech Times

provided by Google News

Google Updates Cloud Spanner with New Features: Backup on Demand, Local Emulator, and More
1 May 2020, InfoQ.com

Google enhances Cloud Spanner and other databases
20 August 2020, TechTarget

Google lays out HarbourBridge to tempt PostgreSQL users onto Cloud Spanner • DEVCLASS
13 February 2020, DevClass

CockroachDB adds Kubernetes and geospatial data support
10 November 2020, ZDNet

Google Releases Spanner Emulator
1 June 2020, iProgrammer

provided by Google News

Microsoft Announces a New Pricing Model Option for Azure Cosmos DB and More Capabilities
3 June 2020, InfoQ.com

Microsoft introduces major Azure Cosmos DB changes
29 May 2020, TechRadar

Microsoft to introduce a free tier of its Cosmos DB NoSQL database
5 March 2020, ZDNet

NoSQL Databases Software Market 2020 to Global Forecast 2023 By Key Companies – MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase, MarkLogic, RethinkDB, CouchDB, SQL-RD, OrientDB, RavenDB, Redis
25 November 2020, The Haitian-Caribbean News Network

Microsoft introduces a more cost-effective way to use Azure Cosmos DB - MSPoweruser
25 May 2020, MSPoweruser

provided by Google News

Job opportunities

Senior Specialized Sales, Database
Amazon Web Services, Inc., Minnesota

Sr Data Analyst
Pegasys Information Technologies, Remote

Software Developer -- Aurora
Amazon.com Services LLC, East Palo Alto, CA

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Amazon.com Services LLC, Florida

Head of Enterprise Data Platform & Capabilities * remote*
Guardian Life Insurance Company, New York, NY

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Google, Sunnyvale, CA

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iknowvate technologies, Memphis, TN

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