Book Image

Azure Data Engineering Cookbook

By : Ahmad Osama
Book Image

Azure Data Engineering Cookbook

By: Ahmad Osama

Overview of this book

Data engineering is one of the faster growing job areas as Data Engineers are the ones who ensure that the data is extracted, provisioned and the data is of the highest quality for data analysis. This book uses various Azure services to implement and maintain infrastructure to extract data from multiple sources, and then transform and load it for data analysis. It takes you through different techniques for performing big data engineering using Microsoft Azure Data services. It begins by showing you how Azure Blob storage can be used for storing large amounts of unstructured data and how to use it for orchestrating a data workflow. You'll then work with different Cosmos DB APIs and Azure SQL Database. Moving on, you'll discover how to provision an Azure Synapse database and find out how to ingest and analyze data in Azure Synapse. As you advance, you'll cover the design and implementation of batch processing solutions using Azure Data Factory, and understand how to manage, maintain, and secure Azure Data Factory pipelines. You’ll also design and implement batch processing solutions using Azure Databricks and then manage and secure Azure Databricks clusters and jobs. In the concluding chapters, you'll learn how to process streaming data using Azure Stream Analytics and Data Explorer. By the end of this Azure book, you'll have gained the knowledge you need to be able to orchestrate batch and real-time ETL workflows in Microsoft Azure.
Table of Contents (11 chapters)

Working with Delta Lake

Delta Lake is a layer between Spark and the underlying storage (Azure Blob Storage, Azure Data Lake Gen2) and provides Atomicity, Consistency, Isolation, and Durability (ACID) properties to Apache Spark. Delta Lake uses a transaction log to keep track of transactions and make transactions ACID compliant.

In this recipe, we'll learn how to perform insert, delete, update, and merge operations with Delta Lake, and then learn how Delta Lake uses transaction logs to implement ACID properties.

Getting ready

To get started, follow these steps:

  1. Log into using your Azure credentials.
  2. You will need an existing Azure Databricks workspace and at least one Databricks cluster. You can create these by following the Configuring an Azure Databricks environment recipe.

How to do it…

Let's start by creating a new SQL notebook and ingesting data into Delta Lake:


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