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You're reading from  Data Engineering with AWS - Second Edition

Product typeBook
Published inOct 2023
PublisherPackt
ISBN-139781804614426
Edition2nd Edition
Concepts
Data Engineering
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Author (1)
Gareth Eagar
Gareth Eagar
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Gareth Eagar

Gareth Eagar has over 25 years of experience in the IT industry, starting in South Africa, working in the United Kingdom for a while, and now based in the USA. Having worked at AWS since 2017, Gareth has broad experience with a variety of AWS services, and deep expertise around building data platforms on AWS. While Gareth currently works as a Solutions Architect, he has also worked in AWS Professional Services, helping architect and implement data platforms for global customers. Gareth frequently speaks on data related topics.
Read more about Gareth Eagar

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Exploring advanced Athena functionality

As we’ve discussed several times in this book, Athena lets you query data that has been loaded into the data lake using standard SQL semantics. But since the launch of Athena, AWS has added additional functionality to enhance Athena to make it an even more powerful query engine.

One of those major enhancements, which became available in 2021 with Athena query engine v2, was the ability to run federated queries, which we will look at next.

Querying external data sources using Athena Federated Query

Query federation, also sometimes referred to as data virtualization, is the process of querying multiple external data sources, in different database engines or other systems, through a single SQL query statement.

Data lakes are designed to collect data from multiple systems in an organization and bring it into centralized storage, where the data can be combined in ways that unlock value for the business. However, it is not...

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Data Engineering with AWS - Second Edition
Published in: Oct 2023Publisher: PacktISBN-13: 9781804614426
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Gareth Eagar

Gareth Eagar has over 25 years of experience in the IT industry, starting in South Africa, working in the United Kingdom for a while, and now based in the USA. Having worked at AWS since 2017, Gareth has broad experience with a variety of AWS services, and deep expertise around building data platforms on AWS. While Gareth currently works as a Solutions Architect, he has also worked in AWS Professional Services, helping architect and implement data platforms for global customers. Gareth frequently speaks on data related topics.
Read more about Gareth Eagar

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