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System AWS DynamoDB Exadata
 Version released Jan 2012 x6-8
 Drawbacks Very few features when compared to other key-value stores Very costly. You get comparable performance with lower cost
 Advantages Managed Database Service provided by a leading cloud provider Robust. Comes from the Oracle Stable
 Languages Supported Java, Node.js, Go, C# .NET, Perl, PHP, Python, Ruby, Haskell and Erlang. All languages supported by Oracle Database
 Website aws.amazon.com/­dynamodb https://www.oracle.com/engineered-systems/exadata/index.html
 Name Amazon DynamoDB --
 XML Support no --
 JSON Support 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 --
 Database Model Key Value Model --
 Technical Documentation aws.amazon.com/­documentation/­dynamodb --
 License commercial on aws cloud. --
 Cloud-based / SaaS Yes but you can download dynamod db locally as well. Local installation does not have vendor support --
 Implementation Language C++ --
 Operating System Supported Linux , OS X, Windows --
 Options for Integration / Access API Rest API --
 Consistency Immediate consistency --
 Foreign Keys No --
 Streaming Support No --
 Analytics Support NA --
 Data Storage Schema Key Value Model --
 Notable Users As per Amazon the solution has been deployed by around 100,000 customers --
 Key Differentiator Amazon allows developers to purchase a service based on throughput, rather than storage. --
 Concurrency Yes --
 Partitioning Sharding --
 Replication Multi Data Center Replication supported --
 Secondary Indexes Yes --
 SchemaLess Yes --
 SQL Query No --