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“Achieve Optimal Performance with Lesson Learned #336: Leveraging the STARTUP_STATE Option in an Extended Event on Azure SQL Database”

Lesson Learned #336: Using the ‘Startup State’ Option in an Extended Events Session in Azure SQL Database
Introduction
Cloud computing has revolutionized the way we store, process, and manage data. With the advent of cloud technology, cloud architects are now able to design and deploy highly available and secure cloud-based applications with a fraction of the effort and cost associated with traditional on-premise solutions. Azure SQL Database is a cloud-based relational database management system (RDBMS) offering a range of services and features to help customers create and manage highly available and secure data solutions.One of the features of Azure SQL Database is the ability to use the ‘Startup State’ option when creating an extended events session. This option allows customers to configure an extended events session to start up automatically when the database is restarted or when the server is restarted.

What is an Extended Events Session?
An extended events session is a diagnostic tool in Azure SQL Database that captures events related to the performance of the database. It can be used to diagnose and troubleshoot slow queries and other performance issues. The session captures events such as query execution, index usage, locks and latches, memory grant usage, and other activities related to the performance of the database.

What is the ‘Startup State’ Option?
The ‘Startup State’ option in an extended events session is a feature of Azure SQL Database that allows customers to configure the session to start up automatically when the database is restarted or when the server is restarted. This can be useful in scenarios where the session needs to be running all the time, such as when monitoring the performance of the database.

How to Configure the ‘Startup State’ Option
The ‘Startup State’ option can be configured when creating an extended events session. The steps to configure the ‘Startup State’ option are as follows:

* Open the Azure SQL Database portal and navigate to the ‘Extended Events’ section.
* Create a new session by clicking the ‘+ New Session’ button.
* Provide a name for the session and select the ‘Startup State’ option.
* Select the ‘Startup State’ option: ‘On’ to enable the session to start automatically when the database is restarted or when the server is restarted. Select ‘Off’ to disable the session from automatically starting.
* Click ‘Create’ to create the session.

Benefits of Using the ‘Startup State’ Option
The ‘Startup State’ option can be beneficial for customers who want to monitor the performance of the database. By configuring the session to start up automatically when the database is restarted or when the server is restarted, customers can ensure that the session is always running and monitoring the performance of the database.

Conclusion
The ‘Startup State’ option in an extended events session in Azure SQL Database is a useful feature for customers who want to monitor the performance of the database. This option allows customers to configure the session to start up automatically when the database is restarted or when the server is restarted. By utilizing this feature, customers can ensure that the session is always running and monitoring the performance of the database.
References:
Lesson Learned #336: Using STARTUP_STATE option in an extended event in Azure SQL Database

1. Azure SQL Database
2. Extended Events
3. STARTUP_STATE

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