revoke-server-principal-permissions-transact-sql.md

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REVOKE Server Principal Permissions	SQL Server (Transact-SQL)	Revoke permissions on a SQL Server login.	VanMSFT	vanto	08/10/2017	sql	t-sql	reference	REVOKE statement, impersonation permissions [SQL Server], impersonation permissions [SQL Server], logins impersonate [SQL Server], revoking logins [SQL Server], revoking REVOKE statement, logins	TSQL

REVOKE Server Principal Permissions (Transact-SQL)

[!INCLUDE SQL Server]

Revokes permissions granted or denied on a [!INCLUDEssNoVersion] login.

:::image type="icon" source="../../includes/media/topic-link-icon.svg" border="false"::: Transact-SQL syntax conventions

Syntax

REVOKE [ GRANT OPTION FOR ] permission [ ,...n ] }   
    ON   
    { [ LOGIN :: SQL_Server_login ]  
      | [ SERVER ROLE :: server_role ] }   
    { FROM | TO } <server_principal> [ ,...n ]  
    [ CASCADE ]  
    [ AS SQL_Server_login ]   
  
<server_principal> ::=   
    SQL_Server_login  
    | SQL_Server_login_from_Windows_login   
    | SQL_Server_login_from_certificate   
    | SQL_Server_login_from_AsymKey     
    | server_role  

Arguments

permission
Specifies a permission that can be revoked on a [!INCLUDEssNoVersion] login. For a list of the permissions, see the Remarks section later in this topic.

LOGIN :: SQL_Server_login
Specifies the [!INCLUDEssNoVersion] login on which the permission is being revoked. The scope qualifier (::) is required.

SERVER ROLE :: server_role
Specifies the server role on which the permission is being revoked. The scope qualifier (::) is required.

{ FROM | TO } <server_principal> Specifies the [!INCLUDEssNoVersion] login or server role from which the permission is being revoked.

SQL_Server_login
Specifies the name of a [!INCLUDEssNoVersion] login.

SQL_Server_login_from_Windows_login
Specifies the name of a [!INCLUDEssNoVersion] login created from a Windows login.

SQL_Server_login_from_certificate
Specifies the name of a [!INCLUDEssNoVersion] login mapped to a certificate.

SQL_Server_login_from_AsymKey
Specifies the name of a [!INCLUDEssNoVersion] login mapped to an asymmetric key.

server_role
Specifies the name of a user-defined server role.

GRANT OPTION
Indicates that the right to grant the specified permission to other principals will be revoked. The permission itself will not be revoked.

Important

If the principal has the specified permission without the GRANT option, the permission itself will be revoked.

CASCADE
Indicates that the permission being revoked is also revoked from other principals to which it has been granted or denied by this principal.

Caution

A cascaded revocation of a permission granted WITH GRANT OPTION will revoke both GRANT and DENY of that permission.

AS SQL_Server_login
Specifies the [!INCLUDEssNoVersion] login from which the principal executing this query derives its right to revoke the permission.

Remarks

[!INCLUDEssNoVersion] logins and server roles are server-level securables. The most specific and limited permissions that can be revoked on a [!INCLUDEssNoVersion] login or server role are listed in the following table, together with the more general permissions that include them by implication.

SQL Server login or server role permission	Implied by SQL Server login or server role permission	Implied by server permission
CONTROL	CONTROL	CONTROL SERVER
IMPERSONATE	CONTROL	CONTROL SERVER
VIEW DEFINITION	CONTROL	VIEW ANY DEFINITION
ALTER	CONTROL	ALTER ANY LOGIN ALTER ANY SERVER ROLE

Permissions

For logins, requires CONTROL permission on the login or ALTER ANY LOGIN permission on the server.

For server roles, requires CONTROL permission on the server role or ALTER ANY SERVER ROLE permission on the server.

Examples

A. Revoking IMPERSONATE permission on a login

The following example revokes IMPERSONATE permission on the [!INCLUDEssNoVersion] login WanidaBenshoof from a [!INCLUDEssNoVersion] login created from the Windows user AdvWorks\YoonM.

USE master;  
REVOKE IMPERSONATE ON LOGIN::WanidaBenshoof FROM [AdvWorks\YoonM];  
GO  

B. Revoking VIEW DEFINITION permission with CASCADE

The following example revokes VIEW DEFINITION permission on the [!INCLUDEssNoVersion] login EricKurjan from the [!INCLUDEssNoVersion] login RMeyyappan. The CASCADE option indicates that VIEW DEFINITION permission on EricKurjan will also be revoked from the principals to which RMeyyappan granted this permission.

USE master;  
REVOKE VIEW DEFINITION ON LOGIN::EricKurjan FROM RMeyyappan   
    CASCADE;  
GO   

C. Revoking VIEW DEFINITION permission on a server role

The following example revokes VIEW DEFINITION on the Sales server role to the Auditors server role.

USE master;  
REVOKE VIEW DEFINITION ON SERVER ROLE::Sales TO Auditors ;  
GO   

See Also

sys.server_principals (Transact-SQL)
sys.server_permissions (Transact-SQL)
GRANT Server Principal Permissions (Transact-SQL)
DENY Server Principal Permissions (Transact-SQL)
CREATE LOGIN (Transact-SQL)
Principals (Database Engine)
Permissions (Database Engine)
Security Functions (Transact-SQL)
Security Stored Procedures (Transact-SQL)