Book Image

Professional Azure SQL Database Administration - Second Edition

By : Ahmad Osama
Book Image

Professional Azure SQL Database Administration - Second Edition

By: Ahmad Osama

Overview of this book

Despite being the cloud version of SQL Server, Azure SQL Database differs in key ways when it comes to management, maintenance, and administration. This book shows you how to administer Azure SQL Database to fully benefit from its wide range of features and functionalities. Professional Azure SQL Database Administration begins by covering the architecture and explaining the difference between Azure SQL Database and the on-premise SQL Server to help you get comfortable with Azure SQL Database. You’ll perform common tasks such as migrating, backing up and restoring a SQL Server database to an Azure database. As you progress, you’ll understand how you can reduce costs, and manage and scale multiple SQL databases using elastic pools. You’ll also implement a disaster recovery solution using standard and active geo-replication. Whether it is learning different techniques to monitor and tune an Azure SQL Database or improving performance using in-memory technology, this book will enable you to make the most out of Azure SQL database features and functionality for data management solutions. By the end of this book, you’ll be well-versed with key aspects of an Azure SQL Database instance, such as migration, backup restorations, performance optimization, high availability, and disaster recovery.
Table of Contents (11 chapters)

Restore Types

This section discusses the different types of restore available in Azure SQL Database.

Point-In-Time Restore

Point-In-Time Restore (PITR) isn't new in the world of SQL Server. On-premises SQL servers allow you to restore a database to a particular point in time by specifying the point-in-time option when restoring the database using the restore command.

As you know, the restore command isn't supported in Azure SQL Database, but the PITR can be performed using the Azure portal, PowerShell, Azure CLI, or Azure SDK. The PITR uses the automatic Full and Log backup.

The backup retention period depends on service types. For DTU(Database Throughput Unit)-based pricing models, the retention period is:

  • 7 days for the Basic service tier
  • 35 days for Standard and Premium service tiers

For vCore-based pricing models, the default retention period is 7 days for the General and Business service tiers. However, the retention period can be changed to up to 35 days. To learn...