DBMS > Amazon DynamoDB

Amazon DynamoDB System Properties

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Our visitors often compare Amazon DynamoDB with MongoDB, Microsoft Azure Cosmos DB and Cassandra.

Editorial information provided by DB-Engines

Name

Description

Hosted, scalable database service by Amazon with the data stored in Amazons cloud

Primary database model

Document store
Key-value store

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	43.14
Rank	#21	Overall
	#2	Document stores
	#2	Key-value stores

Website

aws.amazon.com/dynamodb

Technical documentation

aws.amazon.com/documentation/dynamodb

Developer

Amazon

Initial release

2012

License

Commercial or Open Source

commercial info

free tier for a limited amount of database operations

Cloud-based info

Only available as a cloud service

yes

Server operating systems

hosted

Data scheme

schema-free

Typing

predefined data types such as float or date

yes

Secondary indexes

yes

SQL

Support of SQL

APIs and other access methods

RESTful HTTP API

Supported programming languages

.Net
ColdFusion
Erlang
Groovy
Java
JavaScript
Perl
PHP
Python
Ruby

Server-side scripts info

Stored procedures

Triggers

yes

by integration with AWS Lambda

Partitioning methods info

Methods for storing different data on different nodes

Sharding

Replication methods info

Methods for redundantly storing data on multiple nodes

yes

MapReduce

Offers an API for user-defined Map/Reduce methods

may be implemented via Amazon Elastic MapReduce (Amazon EMR)

Consistency concepts info

Methods to ensure consistency in a distributed system

Eventual Consistency
Immediate Consistency info

can be specified for read operations

Foreign keys info

Referential integrity

Transaction concepts info

Support to ensure data integrity after non-atomic manipulations of data

Concurrent data updates can be detected by the application

Concurrency info

Support for concurrent manipulation of data

yes

Durability info

Support for making data persistent

yes

User concepts info

Access control

Access rights for users and roles can be defined via the AWS Identity and Access Management (IAM)

More information provided by the system vendor

Specific characteristics

Amazon DynamoDB is a fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale. It is a fully managed cloud database and supports both document and key-value store models. Its flexible data model and reliable performance make it a great fit for mobile, web, gaming, ad tech, IoT, and many other applications. Start today by downloading the local version of DynamoDB, then read our Getting Started Guide.

Competitive advantages

Fully Managed
Amazon DynamoDB is a fully managed cloud NoSQL database service – you simply create a database table, set your throughput, and let the service handle the rest. You no longer need to worry about database management tasks such as hardware or software provisioning, setup and configuration, software patching, operating a reliable, distributed database cluster, or partitioning data over multiple instances as you scale. Learn more »

Event Driven Programming
Amazon DynamoDB integrates with AWS Lambda to provide Triggers which enables you to architect applications that automatically react to data changes. Learn more »

Fine-grained Access Control
Amazon DynamoDB integrates with AWS Identity and Access Management (IAM) for fine-grained access control for users within your organization. You can assign unique security credentials to each user and control each user's access to services and resources. Learn more »

Flexible
Amazon DynamoDB supports both document and key-value data structures, giving you the flexibility to design the best architecture that is optimal for your application. Learn more »

Typical application scenarios

Ad Tech
Amazon DynamoDB is a NoSQL database service that delivers consistent, single-digit millisecond latency at any scale. DynamoDB provides the performance and availability you need to create real-time bidding (RTB) platforms and recommendation engines. Reference Architecture: Diagram

Gaming
You can create responsive games for mobile, console, and desktop with DynamoDB. Store and query Amazon Lumberyard game data such as player state, high scores, or world dynamic content through Cloud Canvas. Developing a successful mobile game is about more than just the game: DynamoDB integrates with the AWS Mobile SDK and a broad set of AWS services for user authentication, downloadable content, and social features. Reference Architecture: Diagram

IoT
DynamoDB lets you easily store and query device data so you can focus on building incredible new AWS IoT solutions. Connect your high-velocity, high-volume IoT data in DynamoDB to a Amazon Redshift data warehouse to enable BI analysis. Reference Architecture: Diagram

Key customers

AdRoll, BMW, Canary, Dropcam, Duolingo, MediaTek, Nordstrom, Redfin, Supercell, VidRoll, Zynga, plus many more!

Market metrics

According to DB-Engines' ranking, Amazon DynamoDB is the most popular fully managed database service.

Gartner Research positions Amazon Web Services in the Leaders Quadrant of its Magic Quadrant Operational Database Management Systems. Gartner defines leaders as those that generally demonstrate the most support for a broad range of operational applications, based on support for a wide range of data types and multiple use cases. These vendors demonstrate consistent customer satisfaction and strong customer support.

Licensing and pricing models

With Amazon DynamoDB, you only pay for the throughput and storage you need. The AWS Free Tier offers 25 GB of storage and up to 200 million requests per month with Amazon DynamoDB. Learn more »

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