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28th September 2020, Monday
 
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System AWS Aurora Cassandra (Datastax)
 Version Version 4.2.8 2.1
 Drawbacks NA Paid Version, License Fees, Support Fees
 Advantages Managed RDBMS from AWS DB Failover capability, Enterprise support available
 Website aws.amazon.com/rds/aurora/ www.datastax.com
 XML Support no Not Available.Generally not available in NOSQL DB. Well known RDBMS have this feature
 Name AWS Aurora Cassandra (Datastax)
 Languages Supported Content Management Interoperability Services (CMIS) C C# C++ Java Node.js PHP Python Ruby
 JSON Support yes yes
 Brief description 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 DataStax was built on the open source NoSQL database Apache Cassandra. Cassandra was initially developed internally at Facebook to handle large data sets across multiple servers. It was released as an Apache open source project in 2008
 Database Model Relational Database Primarily a NoSQL database
 Technical Documentation https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Overview.html docs.datastax.com
 License Commercial Commercial
 Cloud-based / SaaS SaaS Service from AWS Virtual Machine Images available in AWS and Azure Marketplace. Available as a Hybrid Cloud SaaS Option - NA
 Implementation Language NA C,C++
 Operating System Supported Not Applicable as its managed by AWS Linux, OS X,
 Options for Integration / Access API Restful HTTP CQL (Cassandra Query Language is like SQL) Gremlin
 Consistency NA Highly Consistent
 Foreign Keys Yes No
 Streaming Support Yes Yes
 Analytics Support NA One of the core features is to build timeseries apps
 Data Storage Schema NA Key Value Column Family NoSQL DB
 Notable Users NA Samsung Smartthings, ING Vysya , Safeway
 Key Differentiator Supports MySQL as a SaaS service (Inno Db Engine). Disk Space provisioning done in 10 GB chunks automatically upto 64 TB. Graph DB built natively on top of the core NoSQL Column Store. Graph and NoSQL component share the same core. Enterprise version of Cassandra supports HighAvailability (HA)
 Concurrency Yes Yes
 Partitioning No Yes
 Replication Yes Yes
 Secondary Indexes Yes based on secondary indexes using Solr Yes
 SchemaLess Yes Yes
 SQL Query No No, but CQL is similar to SQL