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- From relational to NoSQL databases,

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most applications use at least one.

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Many architectures in AWS

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employ multiple databases
of various kinds.

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In this lesson we will explore

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highly available relational databases

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on Amazon Relational Database Service,

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the NoSQL database, Amazon DynamoDB,

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data warehousing with Amazon Redshift,

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as well as services for in-memory
cache and graph databases.