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DBMS > Amazon DynamoDB vs. Cloudflare Workers KV vs. Memcached

System Properties Comparison Amazon DynamoDB vs. Cloudflare Workers KV vs. Memcached

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Editorial information provided by DB-Engines
NameAmazon DynamoDB  Xexclude from comparisonCloudflare Workers KV  Xexclude from comparisonMemcached  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.In-memory key-value store, originally intended for caching
Primary database modelDocument store
Key-value store
Key-value storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score73.76
Rank#16  Overall
#2  Document stores
#2  Key-value stores
Score0.11
Rank#307  Overall
#46  Key-value stores
Score25.18
Rank#30  Overall
#4  Key-value stores
Websiteaws.amazon.com/­dynamodbwww.cloudflare.com/­products/­workers-kvwww.memcached.org
Technical documentationdocs.aws.amazon.com/­dynamodbdevelopers.cloudflare.com/­workers/­runtime-apis/­kvgithub.com/­memcached/­memcached/­wiki
DeveloperAmazonCloudflareDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal
Initial release201220182003
Current release1.6.9, November 2020
License infoCommercial or Open Sourcecommercial infofree tier for a limited amount of database operationscommercialOpen Source infoBSD license
Cloud-based only infoOnly available as a cloud serviceyesyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC
Server operating systemshostedhostedFreeBSD
Linux
OS X
Unix
Windows
Data schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesnono
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 indexesyesnono
SQL infoSupport of SQLnonono
APIs and other access methodsRESTful HTTP APIHTTP REST
Proprietary protocol
Proprietary protocol
Supported programming languages.Net
ColdFusion
Erlang
Groovy
Java
JavaScript
Perl
PHP
Python
Ruby
C
C++
Dart
JavaScript
Kotlin
Python
Rust
Scala
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnonono
Triggersyes infoby integration with AWS Lambdanono
Partitioning methods infoMethods for storing different data on different nodesShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyesyesnone infoRepcached, a Memcached patch, provides this functionallity
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infomay be implemented via Amazon Elastic MapReduce (Amazon EMR)nono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be specified for read operations
Eventual 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 regionnono
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesno
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)yes infousing SASL (Simple Authentication and Security Layer) protocol

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More resources
Amazon DynamoDBCloudflare Workers KVMemcached
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Recent citations in the news

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

ScyllaDB Announces Scylla Enterprise 2021 NoSQL Database
20 May 2021, GlobeNewswire

A better way to query DynamoDB data with SQL
10 March 2021, TechTarget

Amazon Adds Global Clusters to DocumentDB
9 June 2021, InfoQ.com

DynamoDB on-demand vs. provisioned capacity: Which is better?
9 September 2020, TechTarget

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

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27 July 2020, Business Wire

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14 October 2018, InfoQ.com

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