DROP SERVER ROLE (Transact-SQL)
Removes a user-defined server role.
User-defined server roles are new in SQL Server 2012.
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Transact-SQL Syntax Conventions
Syntax
DROP SERVER ROLE role_name
Arguments
- role_name
Specifies the user-defined server role to be dropped from the server.
Remarks
User-defined server roles that own securables cannot be dropped from the server. To drop a user-defined server role that owns securables, you must first transfer ownership of those securables or delete them.
User-defined server roles that have members cannot be dropped. To drop a user-defined server role that has members, you must first remove members of the role by using ALTER SERVER ROLE.
Fixed server roles cannot be removed.
You can view information about role membership by querying the sys.server_role_members catalog view.
Permissions
Requires CONTROL permission on the server role or ALTER ANY SERVER ROLE permission.
Examples
A. To drop a server role
The following example drops the server role purchasing.
DROP SERVER ROLE purchasing;
GO
B. To view role membership
To view role membership, use the Server Role (Members) page in SQL Server Management Studio or execute the following query:
SELECT SRM.role_principal_id, SP.name AS Role_Name,
SRM.member_principal_id, SP2.name AS Member_Name
FROM sys.server_role_members AS SRM
JOIN sys.server_principals AS SP
ON SRM.Role_principal_id = SP.principal_id
JOIN sys.server_principals AS SP2
ON SRM.member_principal_id = SP2.principal_id
ORDER BY SP.name, SP2.name
C. To view role membership
To determine whether a server role owns another server role, execute the following query:
SELECT SP1.name AS RoleOwner, SP2.name AS Server_Role
FROM sys.server_principals AS SP1
JOIN sys.server_principals AS SP2
ON SP1.principal_id = SP2.owning_principal_id
ORDER BY SP1.name ;
See Also
Reference
sp_addrolemember (Transact-SQL)
sys.database_role_members (Transact-SQL)
sys.database_principals (Transact-SQL)