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Professional Azure SQL Managed Database Administration

Professional Azure SQL Managed Database Administration

By : Ahmad Osama, Shakya
4.3 (3)
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Professional Azure SQL Managed Database Administration

Professional Azure SQL Managed Database Administration

4.3 (3)
By: Ahmad Osama, 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)
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13
Index

SQL Graph queries and improvements

A graph database consists of nodes and edges. The nodes represent entities in your graph, such as people or organizations, and edges represent the relationship between two entities. The graph databases are optimized for implementing hierarchies and many-to-many relationships, and for analyzing interconnected data and relationships. This is difficult to implement in a relational database.

Let's look at modeling a very popular use case for a graph database: a social media application. A social media application allows users to follow, like, post, comment, and tag other users. Let's look at a simple model in Figure 11.12 that allows users to do this:

Note

To find out more about graphs, refer to https://docs.microsoft.com/sql/relational-databases/graphs/sql-graph-overview?view=sql-server-ver15.

Social media model for following users

Figure 11.12: Social media model for following users

In Figure 11.12, the circles represent nodes and the lines...

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