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DBMS > Amazon DynamoDB vs. Cloudflare Workers KV vs. Microsoft Azure Cosmos DB

System Properties Comparison Amazon DynamoDB vs. Cloudflare Workers KV vs. Microsoft Azure Cosmos DB

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Editorial information provided by DB-Engines
NameAmazon DynamoDB  Xexclude from comparisonCloudflare Workers KV  Xexclude from comparisonMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparison
DescriptionHosted, scalable database service by Amazon with the data stored in Amazons cloudA global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.Globally distributed, horizontally scalable, multi-model database service
Primary database modelDocument store
Key-value store
Key-value storeDocument store
Graph DBMS
Key-value store
Wide column store
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score84.46
Rank#16  Overall
#2  Document stores
#2  Key-value stores
Score0.12
Rank#305  Overall
#45  Key-value stores
Score40.22
Rank#27  Overall
#4  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Websiteaws.amazon.com/­dynamodbwww.cloudflare.com/­products/­workers-kvazure.microsoft.com/­services/­cosmos-db
Technical documentationdocs.aws.amazon.com/­dynamodbdevelopers.cloudflare.com/­workers/­runtime-apis/­kvdocs.microsoft.com/­azure/­cosmos-db
DeveloperAmazonCloudflareMicrosoft
Initial release201220182014
License infoCommercial or Open Sourcecommercial infofree tier for a limited amount of database operationscommercialcommercial
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 schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesnoyes 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.no
Secondary indexesyesnoyes infoAll properties auto-indexed by default
SQL infoSupport of SQLnonoSQL-like query language
APIs and other access methodsRESTful HTTP APIHTTP REST
Proprietary protocol
DocumentDB API
Graph API (Gremlin)
MongoDB API
RESTful HTTP API
Table API
Supported programming languages.Net
ColdFusion
Erlang
Groovy
Java
JavaScript
Perl
PHP
Python
Ruby
C
C++
Dart
JavaScript
Kotlin
Python
Rust
Scala
.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
Server-side scripts infoStored proceduresnonoJavaScript
Triggersyes infoby integration with AWS LambdanoJavaScript
Partitioning methods infoMethods for storing different data on different nodesShardingSharding infoImplicit feature of the cloud service
Replication methods infoMethods for redundantly storing data on multiple nodesyesyesyes infoImplicit feature of the cloud service
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infomay be implemented via Amazon Elastic MapReduce (Amazon EMR)nowith Hadoop integration infoIntegration with Hadoop/HDInsight on Azure*
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be specified for read operations
Eventual ConsistencyBounded Staleness
Consistent Prefix
Eventual Consistency
Immediate Consistency infoConsistency level configurable on request level
Session Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoACID across one or more tables within a single AWS account and regionnoMulti-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.no
User concepts infoAccess controlAccess rights for users and roles can be defined via the AWS Identity and Access Management (IAM)Access rights can be defined down to the item level

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More resources
Amazon DynamoDBCloudflare Workers KVMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB
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Recent citations in the news

Clumio adds DynamoDB to backup-as-a-service portfolio
12 April 2022, TechTarget

Updated Insight NoSQL Market Future Trends, Scope, Top Players 2016 to 2028 | Microsoft SQL Server, MySQL, MongoDB, PostgreSQL, Oracle Database, MongoLab, MarkLogic, Couchbase, CloudDB, DynamoDB, B… – Industrial IT
27 May 2022, Industrial IT

Everything You Need to Know About AWS DynamoDB
28 May 2021, hackernoon.com

DynamoDB's co-creator reflects on the database's birthday and how cloud is driving a machine learning future
15 February 2022, SiliconANGLE News

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29 April 2022, The Register

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Cloudflare D1 Provides Distributed SQLite for Cloudflare Workers
25 May 2022, InfoQ.com

Cloudflare Enters the Database Business
14 May 2022, The Motley Fool

Cloudflare Workers KV, a distributed native key-value store for Cloudflare Workers
1 October 2018, Packt Hub

Cloudflare Releases Workers KV, a Serverless Key-Value Store at the Edge
28 May 2019, InfoQ.com

Evolving Core Web Vitals tactics using Cloudflare and WebpageTest
24 January 2022, Search Engine Land

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Microsoft Announces Intelligent Data Platform For Database Integration
24 May 2022, TechDecisions

An Introduction and Tutorial for Azure Cosmos DB
25 February 2022, InfoQ.com

Microsoft fixes cross-account vulns in Azure Database for PostgreSQL service
28 April 2022, The Register

NoSQL Software Market Is Likely to Experience a Tremendous Growth in Near Future | MongoDB, Amazon, ArangoDB, Azure Cosmos DB, Couchbase – Carbon Valley Farmer and Miner
25 May 2022, Carbon Valley Farmer and Miner

Researchers discover critical flaw in Azure Cosmos DB
27 August 2021, TechTarget

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