Book Image

Azure Data Engineer Associate Certification Guide

By : Newton Alex
Book Image

Azure Data Engineer Associate Certification Guide

By: Newton Alex

Overview of this book

Azure is one of the leading cloud providers in the world, providing numerous services for data hosting and data processing. Most of the companies today are either cloud-native or are migrating to the cloud much faster than ever. This has led to an explosion of data engineering jobs, with aspiring and experienced data engineers trying to outshine each other. Gaining the DP-203: Azure Data Engineer Associate certification is a sure-fire way of showing future employers that you have what it takes to become an Azure Data Engineer. This book will help you prepare for the DP-203 examination in a structured way, covering all the topics specified in the syllabus with detailed explanations and exam tips. The book starts by covering the fundamentals of Azure, and then takes the example of a hypothetical company and walks you through the various stages of building data engineering solutions. Throughout the chapters, you'll learn about the various Azure components involved in building the data systems and will explore them using a wide range of real-world use cases. Finally, you’ll work on sample questions and answers to familiarize yourself with the pattern of the exam. By the end of this Azure book, you'll have gained the confidence you need to pass the DP-203 exam with ease and land your dream job in data engineering.
Table of Contents (23 chapters)
1
Part 1: Azure Basics
3
Part 2: Data Storage
10
Part 3: Design and Develop Data Processing (25-30%)
15
Part 4: Design and Implement Data Security (10-15%)
17
Part 5: Monitor and Optimize Data Storage and Data Processing (10-15%)
20
Part 6: Practice Exercises

Implementing different table geometries with Azure Synapse Analytics pools

The term table geometry is not standard database terminology, so I'm taking an educated guess that the certification team meant the different features of Azure Synapse dedicated pool tables.

The main features of Synapse dedicated pool tables are partitions, indexes, and distributions. We have already covered partitions and distributions in detail, so we will focus on the remaining feature, which is indexing.

SQL dedicated pools provide the following three types of indexing:

  • Clustered columnstore indexing
  • Heap indexing
  • Clustered indexing

Let's look at them in detail.

Clustered columnstore indexing

Clustered columnstore is the default indexing option of a dedicated SQL pool table. This type of indexing works best for large fact tables. It is a column-based data storage and provides very high levels of compression and better query performance than row-based indexes.

...