{"id":1764,"date":"2014-01-05T11:00:24","date_gmt":"2014-01-05T16:00:24","guid":{"rendered":"http:\/\/sqlity.net\/en\/?p=1764"},"modified":"2014-11-13T13:22:11","modified_gmt":"2014-11-13T18:22:11","slug":"member-management-server-roles","status":"publish","type":"post","link":"https:\/\/sqlity.net\/en\/1764\/member-management-server-roles\/","title":{"rendered":"Member Management for Server Roles"},"content":{"rendered":"
\n

Introduction<\/h3>\n

\nYesterday I wrote about how the new SQL Server 2012 user-defined server roles<\/a> can help with security management. Today I would like to show you how to add and remove members from a role and how to list current members.\n<\/p>\n

Adding new Members to a Server Role<\/h3>\n

\nBefore we can add a new member to a role we first need to create a role and a login:\n<\/p>\n

\n[sql]\nCREATE SERVER ROLE TestServerRole;
\nCREATE LOGIN TestLogin WITH PASSWORD = 'P', CHECK_POLICY = OFF;
\n[\/sql]\n<\/div>\n

\nWith those two statements executed we have an empty server role TestServerRole<\/span> and a new login TestLogin<\/span>.\n<\/p>\n

\nTo now add this new login as a member to the role we need to use the ALTER SERVER ROLE<\/span> statement:\n<\/p>\n

\n[sql]\nALTER SERVER ROLE TestServerRole ADD MEMBER TestLogin;
\n[\/sql]\n<\/div>\n

\nThat adds the TestLogin<\/span> as a member to the server role TestServerRole<\/span>. The new member does not need to be a SQL Login. It also can be a windows login or another user-defined server role. Attempting to add a fixed server role or the login 'SA' to a user-defined server role will however result in an error.\n<\/p>\n

Selecting all current Server Role Members<\/h3>\n

\nTo confirm that adding the new member worked we can use the following T-SQL statement against the sys.server_role_members<\/span> catalog view:\n<\/p>\n

\n[sql]\nSELECT SPR.name AS role_name,
\n SPM.name AS member_name
\nFROM sys.server_role_members AS SRM
\nJOIN sys.server_principals AS SPR
\n ON SPR.principal_id = SRM.role_principal_id
\nJOIN sys.server_principals AS SPM
\n ON SPM.principal_id = SRM.member_principal_id
\nWHERE SPR.name = 'TestServerRole';
\n[\/sql]\n<\/div>\n

\nIt lists all the current members of our server role:\n<\/p>\n

\n\"select<\/a>\n<\/p>\n

Dropping Server Role Members<\/h3>\n

\nIf we want to remove a member from a role we also have to use the ALTER SERVER ROLE<\/span> statement, but this time with a DROP<\/span> clause:\n<\/p>\n

\n[sql]\nALTER SERVER ROLE TestServerRole DROP MEMBER TestLogin;
\n[\/sql]\n<\/div>\n

\nYou can again use the above select statement to confirm that the drop was successful.\n<\/p>\n

Fixed Server Roles<\/h3>\n

\nMember management for fixed server roles works the same way as it does with user-defined server roles. So if you want to add our new login to e.g. the sysadmin<\/span> fixed server role, you can use this statement:\n<\/p>\n

\n[sql]\nALTER SERVER ROLE sysadmin ADD MEMBER TestLogin;
\n[\/sql]\n<\/div>\n

\nTo list all members of the sysadmin fixed server role, just replace TestServerRole<\/span> with sysadmin<\/span> in above select statement like this:\n<\/p>\n

\n[sql]\nSELECT SPR.name AS role_name,
\n SPM.name AS member_name
\nFROM sys.server_role_members AS SRM
\nJOIN sys.server_principals AS SPR
\n ON SPR.principal_id = SRM.role_principal_id
\nJOIN sys.server_principals AS SPM
\n ON SPM.principal_id = SRM.member_principal_id
\nWHERE SPR.name = 'sysadmin';
\n[\/sql]\n<\/div>\n<\/p>\n

Summary<\/h3>\n

\nThe ALTER SERVER ROLE<\/span> statement allows us to add new members to a server role and remove existing ones from it. The sys.server_role_members<\/span> catalog view can be used to select all current members of a server role.\n<\/p>\n

\nIf you were following along, use these two statements to clean up the test principals:\n<\/p>\n

\n[sql]\nDROP LOGIN TestLogin;
\nDROP SERVER ROLE TestServerRole;
\n[\/sql]\n<\/div>\n<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Server Roles allow for simplified security management for server level permissions in SQL Server. Learn how to add new members, remove existing ones or list all current members of a server role. 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