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

Elastic database jobs

Elastic database jobs or Azure-hosted elastic database jobs can be used to schedule a T-SQL task such as index maintenance against an SQL database, a group of SQL Database elastic database pools or an SQL Database shard, all databases in an elastic database pool, a shard map, or a server across different Azure subscriptions.

An elastic database job can span multiple databases in the same subscription or in different subscriptions.

Figure 8.14 illustrates the different components of an elastic database job:

Different components of an elastic database job

Figure 8.14: Different components of an elastic database job

Let's discuss some of the components in the diagram.

Elastic job agent

An elastic job agent is an Azure resource that's responsible for creating, executing, and managing jobs.

Job database

An existing clean (blank) SQL database of the Standard (S0) or a higher-performance tier is used to store the job definitions, job status, elastic job agent...