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DBMS > Amazon DynamoDB

Amazon DynamoDB System Properties

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Editorial information provided by DB-Engines
NameAmazon DynamoDB
DescriptionHosted, scalable database service by Amazon with the data stored in Amazons cloud
Primary database modelDocument store
Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Rank#21  Overall
#2  Document stores
#2  Key-value stores
Technical documentationdocs.aws.amazon.com/­dynamodb
Initial release2012
License infoCommercial or Open Sourcecommercial infofree tier for a limited amount of database operations
Cloud-based only infoOnly available as a cloud serviceyes
Server operating systemshosted
Data schemeschema-free
Typing infopredefined data types such as float or dateyes
Secondary indexesyes
SQL infoSupport of SQLno
APIs and other access methodsRESTful HTTP API
Supported programming languages.Net
Server-side scripts infoStored proceduresno
Triggersyes infoby integration with AWS Lambda
Partitioning methods infoMethods for storing different data on different nodesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infomay be implemented via Amazon Elastic MapReduce (Amazon EMR)
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be specified for read operations
Foreign keys infoReferential integrityno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoConcurrent data updates can be detected by the application
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes
User concepts infoAccess controlAccess rights for users and roles can be defined via the AWS Identity and Access Management (IAM)
More information provided by the system vendor
Amazon DynamoDB
Specific characteristics

Amazon DynamoDB is a nonrelational database that delivers reliable performance at any scale. It's a fully managed, multi-region, multi-master database that provides consistent single-digit millisecond latency, and offers built-in security, backup and restore, and in-memory caching.

More than 100,000 AWS customers have chosen DynamoDB for mobile, web, gaming, ad tech, IoT, and many other applications that need low-latency data access. Create a new table for your application and let DynamoDB handle the rest. 

Competitive advantages

DynamoDB delivers consistent, single-digit millisecond responsiveness at any scale. Build apps with virtually unlimited throughput and storage. Add an in-memory cache that reduces response times from milliseconds to microseconds, without any app changes. Learn more Â»

DynamoDB is a serverless database that automatically scales throughput up or down, and continuously backs up your data for protection. DynamoDB gives your globally distributed applications fast access to local data by replicating tables across multiple AWS Regions. Learn more »

Built for mission-critical workloads. Your data is secured with encryption and guaranteed reliability with a service level agreement. You have full oversight of your tables with fine-grained access control, integrated monitoring tools, and support for private connections over VPN. 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

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

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

Samsung uses DynamoDB for their petabyte size mobile app backups, resulting in consistent high performance and cost savings. Watch the video Â»

Netflix uses DynamoDB to run A/B testing that builds personalized streaming experiences for their 125+ million customers. Watch the video Â»

Capital One uses DynamoDB to reduce latency for their mobile applications by moving their mainframe transactions to a serverless architecture for unbound scale. Watch the video Â»

Snap migrated their largest storage workload, Snapchat Stories, to DynamoDB and improved performance while reducing cost. Watch the video Â»

See more case studies >>

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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More resources
Amazon DynamoDB
DB-Engines blog posts

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Recent citations in the news

DynamoDB pricing option makes it a go-to for serverless apps
11 December 2018, techtarget.com

Amazon Announces DynamoDB Support for Transactions
3 December 2018, InfoQ.com

Amazon re:Invent announces Amazon DynamoDB Transactions, CloudWatch Logs Insights and cloud security conference, Amazon re:Inforce 2019
28 November 2018, Packt Hub

What is DynamoDB? A Look at Amazon’s Super Scalable NoSQL Database
5 December 2018, Business 2 Community

Amazon Web Services Announces Series of New Database Capabilities
28 November 2018, Business Wire

provided by Google News

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