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AWS CLOUD PRACTIONER EXAM NOTES - 6

                                Database


1.Amazon Aurora
2.Amazon DynamoDB
3.Amazon ElastiCache
4.Amazon RDS
5.Amazon Redshift


a. Amazon Neptune
b. Amazon document db
c. Amazon quantum ledger database (Amazon QLDB)





Amazon Aurora
Amazon Aurora (Aurora) is a fully managed relational database engine that's     compatible with MySQL and PostgreSQL.

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Amazon DynamoDB (schema-less.)
Amazon DynamoDB is a fully managed NoSQL database service that provides fast and          predictable performance with seamless scalability.


Amazon DynamoDB Accelerator (DAX)
is a fully managed, highly available, in-memory cache for DynamoDB that delivers up       to a 10x performance improvement – from milliseconds to microseconds – even at        millions of requests per second.
   

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Amazon ElastiCache
ElastiCache is a web service that makes it easy to deploy and run 
Memcached or Redis protocol-compliant server nodes in the cloud.
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Amazon RDS
is a managed service that makes it easy to set up, operate, and scale a                   "relational database"(sql) in the cloud.
   
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Amazon Redshift
Amazon Redshift is a fast, fully managed data warehouse that makes it simple and         cost-effective to analyze all your data using standard SQL and existing Business         Intelligence (BI) tools. RedShift is a relational database that is used for 
Online Analytics Processing (OLAP) use cases.


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Amazon Neptune 
Amazon Neptune is a fast, reliable, fully managed graph database service that make
it easy to build and run applications that work with highly connected datasets. The  core of Neptune is a purpose-built, high-performance graph database engine that is  optimized for storing billions of relationships and querying the graph with   milliseconds latency.

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Amazon document db
Its a document database service, it supports MongoDB workloads
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Amazon quantum ledger database (Amazon QLDB) 

Its a ledger database service. You can use Amazon QLDB to review complete history of all the changes that have been made to your application data.

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