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Azure Data Engineer Associate Certification Guide

You're reading from   Azure Data Engineer Associate Certification Guide Ace the DP-203 exam with advanced data engineering skills

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Product type Paperback
Published in May 2024
Publisher Packt
ISBN-13 9781805124689
Length 548 pages
Edition 2nd Edition
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Authors (3):
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Newton Alex Newton Alex
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Newton Alex
Giacinto Palmieri Giacinto Palmieri
Author Profile Icon Giacinto Palmieri
Giacinto Palmieri
Mr. Surendra Mettapalli Mr. Surendra Mettapalli
Author Profile Icon Mr. Surendra Mettapalli
Mr. Surendra Mettapalli
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Table of Contents (17) Chapters Close

Preface 1. Part 1: Azure Basics FREE CHAPTER
2. Chapter 1: Introducing Azure Basics 3. Part 2: Data Storage
4. Chapter 2: Implementing a Partition Strategy 5. Chapter 3: Designing and Implementing the Data Exploration Layer 6. Part 3:Data Processing
7. Chapter 4: Ingesting and Transforming Data 8. Chapter 5: Developing a Batch Processing Solution 9. Chapter 6: Developing a Stream Processing Solution 10. Chapter 7: Managing Batches and Pipelines 11. Part 4:Secure, Monitor, and Optimize Data Storage and Processing
12. Chapter 8: Implementing Data Security 13. Chapter 9: Monitoring Data Storage and Data Processing 14. Chapter 10: Optimizing and Troubleshooting Data Storage and Data Processing 15. Chapter 11: Accessing the Online Practice Resources 16. Other Books You May Enjoy

Reverting Data to a Previous State

Reverting data to a previous state or rolling back to a stable state is a very commonly used technique in databases and Online Transaction Processing (OLTP) scenarios. In OLTP scenarios, the transformation instructions are grouped together into a transaction, and if any of the instructions fail or reach an inconsistent state, then the entire transaction rolls back.

Although databases provide such functionality, you don’t have such ready-made support in ADF or Oozie (HDInsight) today. You will have to build your own rollback stages depending on the activity.

Note

This section primarily focuses on the Revert data to a previous state concept of the DP-203: Data Engineering on Microsoft Azure exam.

ADF provides options for checking consistency and setting limits for fault tolerance. Now look at an example to learn how the rollback of a Copy Data activity is done in ADF. You can enable Data consistency verification and Fault tolerance...

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