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ETL with Azure Cookbook

You're reading from  ETL with Azure Cookbook

Product type Book
Published in Sep 2020
Publisher Packt
ISBN-13 9781800203310
Pages 446 pages
Edition 1st Edition
Languages
Concepts
Authors (3):
Christian Cote Christian Cote
Profile icon Christian Cote
Matija Lah Matija Lah
Profile icon Matija Lah
Madina Saitakhmetova Madina Saitakhmetova
Profile icon Madina Saitakhmetova
View More author details
Toc

Table of Contents (12) Chapters close

Preface 1. Chapter 1: Getting Started with Azure and SSIS 2019 2. Chapter 2: Introducing ETL 3. Chapter 3: Creating and Using SQL Server 2019 Big Data Clusters 4. Chapter 4: Azure Data Integration 5. Chapter 5: Extending SSIS with Custom Tasks and Transformations 6. Chapter 6: Azure Data Factory 7. Chapter 7: Azure Databricks 8. Chapter 8: SSIS Migration Strategies 9. Chapter 9: Profiling data in Azure 10. Chapter 10: Manage SSIS and Azure Data Factory with Biml 11. Other Books You May Enjoy

Extracting data from a Big Data Cluster

In this recipe, you are going to complete the development of an SSIS solution used to extract data from a database hosted on a Big Data Cluster instance in Azure and load it into a database hosted on the local SQL Server instance.

The purpose of this package is to reduce the size of the data that actually needs to be transferred from the external source into the line-of-business database, by restricting the remote source set to only contain data that does not yet exist in the local database.

In general, determining the delta hardly represents a task worthy of the capabilities available in Big Data Clusters or a typical case for using Spark; however, it does represent a very significant element in efficient data warehousing.

Getting ready

This recipe assumes that you have completed the preceding recipe in this chapter, entitled Loading data into a Big Data Cluster, and that the expected data is available in the dbo.NewPeople external...

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