Roles created by Azure extension for SQL Server installation

Applies to: SQL Server

This article lists the server and database roles and mappings that the installation of Azure extension for SQL Server creates.

Roles

When you install Azure extension for SQL Server, the installation:

1. Creates a server level role: SQLArcExtensionServerRole
2. Creates a database level role: SQLArcExtensionUserRole
3. Adds NT AUTHORITY\SYSTEM account to each role
4. Maps NT AUTHORITY\SYSTEM at the database level for each database
5. Grants minimum permissions for the enabled features

In addition, Azure extension for SQL Server revokes permissions for these roles when they're no longer needed for specific features.

A Windows scheduled task runs hourly. It grants or revokes privileges in SQL Server when it detects:

• A new SQL Server instance is installed on the host
• A new database is created
• A feature is enabled or disabled

For details, review Configure Windows service accounts and permissions for Azure extension for SQL Server.

If you uninstall Azure extension for SQL Server, the server and database level roles are removed.

Permissions

Feature	Permission	Level	Role
Default	VIEW SERVER STATE	Server Level	SQLArcExtensionServerRole
	CONNECT SQL	Server Level	SQLArcExtensionServerRole
	VIEW ANY DEFINITION	Server Level	SQLArcExtensionServerRole
	VIEW ANY DATABASE	Server Level	SQLArcExtensionServerRole
	CONNECT ANY DATABASE	Server Level	SQLArcExtensionServerRole
	SELECT dbo.sysjobactivity	msdb	SQLArcExtensionUserRole
	SELECT dbo.sysjobs	msdb	SQLArcExtensionUserRole
	SELECT dbo.syssessions	msdb	SQLArcExtensionUserRole
	SELECT dbo.sysjobHistory	msdb	SQLArcExtensionUserRole
	SELECT dbo.sysjobSteps	msdb	SQLArcExtensionUserRole
	SELECT dbo.syscategories	msdb	SQLArcExtensionUserRole
	SELECT dbo.sysoperators	msdb	SQLArcExtensionUserRole
	SELECT dbo.suspectpages	msdb	SQLArcExtensionUserRole
	SELECT dbo.backupset	msdb	SQLArcExtensionUserRole
	SELECT dbo.backupmediaset	msdb	SQLArcExtensionUserRole
	SELECT dbo.backupmediafamily	msdb	SQLArcExtensionUserRole
	SELECT dbo.backupfile	msdb	SQLArcExtensionUserRole
Backup	CREATE ANY DATABASE	Server Level	SQLArcExtensionServerRole
	db_backupoperator role	All databases	SQLArcExtensionUserRole
	dbcreator	Server Level	SQLArcExtensionServerRole
Azure Control Plane	CREATE TABLE	msdb	SQLArcExtensionUserRole
	ALTER ANY SCHEMA	msdb	SQLArcExtensionUserRole
	CREATE TYPE	msdb	SQLArcExtensionUserRole
	EXECUTE	msdb	SQLArcExtensionUserRole
	db_datawriter role	msdb	SQLArcExtensionUserRole
	db_datareader role	msdb	SQLArcExtensionUserRole
Availability Group Discovery	VIEW ANY DEFINITION	Server Level	SQLArcExtensionServerRole
Purview	SELECT	All databases	SQLArcExtensionUserRole
	EXECUTE	All databases	SQLArcExtensionUserRole
Migration Assessment	EXECUTE dbo.agent_datetime	msdb	SQLArcExtensionUserRole
	SELECT dbo.sysjobs	msdb	SQLArcExtensionUserRole
	SELECT dbo.sysmail_account	msdb	SQLArcExtensionUserRole
	SELECT dbo.sysmail_profile	msdb	SQLArcExtensionUserRole
	SELECT dbo.sysmail_profileaccount	msdb	SQLArcExtensionUserRole
	SELECT dbo.syssubsystems	msdb	SQLArcExtensionUserRole
	SELECT sys.sql_expression_dependencies	All databases	SQLArcExtensionUserRole

Run with least privilege

To run Azure extension for SQL Server with least privilege, follow the instructions at Operate SQL Server enabled by Azure Arc with least privilege (preview).

At this time, the least privilege configuration is not the default.

Related content

Configure Windows service accounts and permissions