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System AWS DynamoDB AWS Aurora
 Name Amazon DynamoDB AWS Aurora
 Version released Jan 2012 Version 4.2.8
 Drawbacks Very few features when compared to other key-value stores NA
 Advantages Managed Database Service provided by a leading cloud provider Managed RDBMS from AWS
 Languages Supported Java, Node.js, Go, C# .NET, Perl, PHP, Python, Ruby, Haskell and Erlang. Content Management Interoperability Services (CMIS)
 Website aws.amazon.com/­dynamodb aws.amazon.com/rds/aurora/
 XML Support no no
 JSON Support yes yes
 Brief description Amazon DynamoDB is a fully managed proprietary NoSQL database service that supports key-value and document data structures[2] and is offered by Amazon.com as part of the Amazon Web Services portfolio Aurora is available as part of the Amazon Relational Database Service (RDS). Although it is a proprietary technology it offers MySQL compatible service since its release . This was made PostgreSQL compatible since October 2017
 Database Model Key Value Model Relational Database
 Technical Documentation aws.amazon.com/­documentation/­dynamodb https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Overview.html
 License commercial on aws cloud. Commercial
 Cloud-based / SaaS Yes but you can download dynamod db locally as well. Local installation does not have vendor support SaaS Service from AWS
 Implementation Language C++ NA
 Operating System Supported Linux , OS X, Windows Not Applicable as its managed by AWS
 Options for Integration / Access API Rest API Restful HTTP
 Consistency Immediate consistency NA
 Foreign Keys No Yes
 Streaming Support No Yes
 Analytics Support NA NA
 Data Storage Schema Key Value Model NA
 Notable Users As per Amazon the solution has been deployed by around 100,000 customers NA
 Key Differentiator Amazon allows developers to purchase a service based on throughput, rather than storage. Supports MySQL as a SaaS service (Inno Db Engine). Disk Space provisioning done in 10 GB chunks automatically upto 64 TB.
 Concurrency Yes Yes
 Partitioning Sharding No
 Replication Multi Data Center Replication supported Yes
 Secondary Indexes Yes Yes based on secondary indexes using Solr
 SchemaLess Yes Yes
 SQL Query No No