Book Image

Professional Azure SQL Managed Database Administration - Third Edition

By : Ahmad Osama, Shashikant Shakya
Book Image

Professional Azure SQL Managed Database Administration - Third Edition

By: Ahmad Osama, Shashikant Shakya

Overview of this book

Despite being the cloud version of SQL Server, Azure SQL Database and Azure SQL Managed Instance stands out in various aspects when it comes to management, maintenance, and administration. Updated with the latest Azure features, Professional Azure SQL Managed Database Administration continues to be a comprehensive guide for becoming proficient in data management. The book begins by introducing you to the Azure SQL managed databases (Azure SQL Database and Azure SQL Managed Instance), explaining their architecture, and how they differ from an on-premises SQL server. You will then learn how to perform common tasks, such as migrating, backing up, and restoring a SQL Server database to an Azure database. As you progress, you will study how you can save costs and manage and scale multiple SQL databases using elastic pools. You will also implement a disaster recovery solution using standard and active geo-replication. Finally, you will explore the monitoring and tuning of databases, the key features of databases, and the phenomenon of app modernization. By the end of this book, you will have mastered the key aspects of an Azure SQL database and Azure SQL managed instance, including migration, backup restorations, performance optimization, high availability, and disaster recovery.
Table of Contents (14 chapters)
13
Index

Restore types

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

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.

Azure SQL Database and SQL Managed Instance backups are managed by the automatic backups feature of the PaaS offering. Point-in-time restores can only be performed using the Azure portal, PowerShell, the Azure CLI, or the Azure SDK. PITR uses the automatic Full, Differential, and Log backups.

For all new, restored, and copied databases on Azure SQL Database and SQL Managed Instance, the default retention period is 7 days. The retention period can be adjusted for existing or deleted databases (the latter is only available on SQL Managed Instance):

  • For active databases on...