Book Image

Data Engineering with AWS - Second Edition

By : Gareth Eagar
5 (1)
Book Image

Data Engineering with AWS - Second Edition

5 (1)
By: Gareth Eagar

Overview of this book

This book, authored by a seasoned Senior Data Architect with 25 years of experience, aims to help you achieve proficiency in using the AWS ecosystem for data engineering. This revised edition provides updates in every chapter to cover the latest AWS services and features, takes a refreshed look at data governance, and includes a brand-new section on building modern data platforms which covers; implementing a data mesh approach, open-table formats (such as Apache Iceberg), and using DataOps for automation and observability. You'll begin by reviewing the key concepts and essential AWS tools in a data engineer's toolkit and getting acquainted with modern data management approaches. You'll then architect a data pipeline, review raw data sources, transform the data, and learn how that transformed data is used by various data consumers. You’ll learn how to ensure strong data governance, and about populating data marts and data warehouses along with how a data lakehouse fits into the picture. After that, you'll be introduced to AWS tools for analyzing data, including those for ad-hoc SQL queries and creating visualizations. Then, you'll explore how the power of machine learning and artificial intelligence can be used to draw new insights from data. In the final chapters, you'll discover transactional data lakes, data meshes, and how to build a cutting-edge data platform on AWS. By the end of this AWS book, you'll be able to execute data engineering tasks and implement a data pipeline on AWS like a pro!
Table of Contents (24 chapters)
1
Section 1: AWS Data Engineering Concepts and Trends
6
Section 2: Architecting and Implementing Data Engineering Pipelines and Transformations
13
Section 3: The Bigger Picture: Data Analytics, Data Visualization, and Machine Learning
17
Section 4: Modern Strategies: Open Table Formats, Data Mesh, DataOps, and Preparing for the Real World
22
Other Books You May Enjoy
23
Index

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...