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System AWS DynamoDB Oracle DB
 Version released Jan 2012 12c
 Drawbacks Very few features when compared to other key-value stores costly. You get comparable performance with open source rdbms databases
 Advantages Managed Database Service provided by a leading cloud provider Robust. Long proven history. Remote connections very stable
 Languages Supported Java, Node.js, Go, C# .NET, Perl, PHP, Python, Ruby, Haskell and Erlang. C, C++
 Website aws.amazon.com/­dynamodb https://www.oracle.com
 Name Amazon DynamoDB Oracle DB
 XML Support no yes
 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 It is a database commonly used for running online transaction processing (OLTP), data warehousing (DW) and mixed (OLTP & DW) database workloads
 Database Model Key Value Model Primarily a relational database
 Technical Documentation aws.amazon.com/­documentation/­dynamodb docs.oracle.com/en/database
 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 Available in AWS, Azure Clouds. Available as a SaaS option in Oracle Cloud
 Implementation Language C++ C,C++
 Operating System Supported Linux , OS X, Windows AIX HP-UX Linux OS X Solaris Windows z/OS
 Options for Integration / Access API Rest API Rest API (Oracle Lite), Oracle Call Interface (OCI) JDBC ODBC
 Consistency Immediate consistency Highly Consistent
 Foreign Keys No Yes
 Streaming Support No No
 Analytics Support NA Need to buy Exadata (high cost)
 Data Storage Schema Key Value Model Relational Database
 Notable Users As per Amazon the solution has been deployed by around 100,000 customers Most of the Fortune 500 Companies
 Key Differentiator Amazon allows developers to purchase a service based on throughput, rather than storage. Highly reliable as a transactional database
 Concurrency Yes Yes
 Partitioning Sharding No
 Replication Multi Data Center Replication supported Yes
 Secondary Indexes Yes Yes
 SchemaLess Yes No
 SQL Query No Yes