sys.server_role_members (Transact-SQL)

Applies to: SQL Server Azure SQL Managed Instance Analytics Platform System (PDW)

Returns one row for each member of each fixed and user-defined server role.

Column name	Data type	Description
role_principal_id	int	Server-Principal ID of the role.
member_principal_id	int	Server-Principal ID of the member.

To add or remove server role membership, use the ALTER SERVER ROLE (Transact-SQL) statement.

Permissions

Logins can view their own server role membership and can view the principal_id's of the members of the fixed server roles. To view all server role membership requires the VIEW ANY DEFINITION permission or membership in the securityadmin fixed server role.

Logins can also view role memberships of roles they own.

In Azure SQL Database, members of the server-role ##MS_DefinitionReader## can query all catalog views.

For more information, see Metadata Visibility Configuration.

Examples

The examples in this section show how to work with server-level roles in Azure SQL Database.

A. Return list of server-role members

The following example returns the names and IDs of the roles and their members.

SELECT	roles.principal_id							AS RolePrincipalID
	,	roles.name									AS RolePrincipalName
	,	server_role_members.member_principal_id		AS MemberPrincipalID
	,	members.name								AS MemberPrincipalName
FROM sys.server_role_members AS server_role_members
INNER JOIN sys.server_principals AS roles
    ON server_role_members.role_principal_id = roles.principal_id
INNER JOIN sys.server_principals AS members 
    ON server_role_members.member_principal_id = members.principal_id  
;

Note

In Azure SQL Database, SQL logins are not persisted in the sys.server_principals catalog view. Therefore, to retrieve the server-level role membership in Azure SQL Database, the catalog view sys.sql_logins needs to be joined.

B. Azure SQL Database: Listing all principals (SQL authentication) which are members of a server-level role

The following statement returns all members of any fixed server-level role using the sys.server_role_members and sys.sql_logins catalog views. This statement has to be run in the virtual master database.

SELECT
		sql_logins.principal_id			AS MemberPrincipalID
	,	sql_logins.name					AS MemberPrincipalName
	,	roles.principal_id				AS RolePrincipalID
	,	roles.name						AS RolePrincipalName
FROM sys.server_role_members AS server_role_members
INNER JOIN sys.server_principals AS roles
    ON server_role_members.role_principal_id = roles.principal_id
INNER JOIN sys.sql_logins AS sql_logins 
    ON server_role_members.member_principal_id = sql_logins.principal_id
;  
GO  

See Also

Catalog Views (Transact-SQL)
Security Catalog Views (Transact-SQL)
Server-Level Roles
Principals (Database Engine)