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Data Engineering with AWS
book

Data Engineering with AWS

by Gareth Eagar
December 2021
Beginner to intermediate content levelBeginner to intermediate
482 pages
11h 27m
English
Packt Publishing
Content preview from Data Engineering with AWS

Chapter 9: Loading Data into a Data Mart

While the data lake enables a significant amount of analytics to happen inside it, there are several use cases where a data engineer may need to load data into an external data warehouse, or data mart, to enable a set of data consumers.

As we reviewed in Chapter 2, Data Management Architectures for Analytics, a data lake is a single source of truth across multiple lines of business, while a data mart contains a subset of data of interest to a particular group of users. A data mart could be a relational database, a data warehouse, or a different kind of data store.

Data marts serve two primary purposes. First, they provide a database with a subset of the data in the data lake, optimized for specific ...

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Publisher Resources

ISBN: 9781800560413Supplemental Content