Concedendo, revogando e negando permissões

Artigo
04/03/2023

Aplica-se a:SQL Server Banco de Dados SQL do Azure Instância Gerenciada de SQL do Azure Azure Synapse Analytics

O objeto ServerPermission é usado para atribuir um conjunto de permissões ou uma permissão de servidor individual ao objeto ServerPermissionSet. Para permissões em nível de servidor, o usuário autorizado se refere a um logon. Logons autenticados pelo Windows são listados como nomes de usuários do Windows. Quando essa amostra de código é executada, ela revoga a permissão do usuário autorizado e verifica se ela foi removida com o método EnumServerPermissions.

Permissões do banco de dados e permissões do objeto de banco de dados podem ser atribuídas similarmente usando os objetos DatabasePermissionSet e ObjectPermissionSet.

Exemplo

Para usar qualquer exemplo de código fornecido, será necessário escolher o ambiente de programação, o modelo de programação e a linguagem de programação para criar o aplicativo. Para obter mais informações, consulte Criar um projeto SMO do Visual C# no Visual Studio .NET.

Concedendo permissões de servidor no Visual Basic

Este exemplo de código concede as permissões Criar Ponto de Extremidade e Alterar Qualquer Ponto de Extremidade ao logon especificado e, em seguida, enumera e exibe as permissões. Uma das permissões é revogada e, depois, as permissões são enumeradas novamente. Esse exemplo supõe que o logon especificado já tem as permissões especificadas.

' compile with: /r:Microsoft.SqlServer.Smo.dll /r:Microsoft.SqlServer.ConnectionInfo.dll   
' /r:Microsoft.SqlServer.Management.Sdk.Sfc.dll /r:Microsoft.SqlServer.SqlEnum.dll  
Imports Microsoft.SqlServer.Management.Smo  
  
Public Class A  
   Public Shared Sub Main()  
      Dim svr As New Server()  
  
      ' Creating the logins (Grantee)  
      Dim vGrantee As [String] = "Grantee1"  
      Dim login As New Login(svr, vGrantee)  
      login.LoginType = LoginType.SqlLogin  
      login.Create("password@1")  
  
      Dim vGrantee2 As [String] = "Grantee2"  
      Dim login2 As New Login(svr, vGrantee2)  
      login2.LoginType = LoginType.SqlLogin  
      login2.Create("password@2")  
  
      ' Define a ServerPermissionSet that contains permission to Create Endpoint and Alter Any Endpoint.   
      Dim sps As New ServerPermissionSet(ServerPermission.CreateEndpoint)  
      sps.Add(ServerPermission.AlterAnyEndpoint)  
  
      ' Grant Create Endpoint and Alter Any Endpoint permissions to Grantee  
      svr.Grant(sps, vGrantee)  
      svr.Grant(sps, vGrantee2)  
  
      ' Enumerate and display the server permissions in the set for the grantee specified in the vGrantee string variable.   
      Dim spis As ServerPermissionInfo() = svr.EnumServerPermissions(vGrantee, sps)  
      'enumerates all server permissions for the Grantee from the specified permission set  
      Console.WriteLine("====Before revoke===========")  
      For Each spi As ServerPermissionInfo In spis  
         Console.WriteLine(spi.Grantee + " has " & spi.PermissionType.ToString() & " permission.")  
      Next  
      Console.WriteLine(" ")  
  
      ' Revoke the create endpoint permission from the grantee.   
      svr.Revoke(New ServerPermissionSet(ServerPermission.CreateEndpoint), vGrantee)  
  
      ' Enumerate and display the server permissions in the set for the grantee specified in the vGrantee string variable.   
      spis = svr.EnumServerPermissions(vGrantee, sps)  
  
      Console.WriteLine("==After revoke=========")  
      For Each spi As ServerPermissionInfo In spis  
         Console.WriteLine(spi.Grantee + " has " & spi.PermissionType.ToString() & " permission.")  
      Next  
      Console.WriteLine(" ")  
  
      ' Grant the Create Server Role permission to the grantee.   
      svr.Grant(New ServerPermissionSet(ServerPermission.ViewAnyDatabase), vGrantee)  
      ' Enumerate and display the server permissions for the grantee specified in the vGrantee string variable.   
  
      ' enumerates all server permissions for the Grantee  
      spis = svr.EnumServerPermissions(vGrantee)  
  
      Console.WriteLine("==After grant========")  
  
      For Each spi As ServerPermissionInfo In spis  
         Console.WriteLine(spi.Grantee + " has " & spi.PermissionType.ToString() & " permission.")  
      Next  
      Console.WriteLine("")  
  
      ' Enumerate and display the server permissions in the set for all logins.   
      spis = svr.EnumServerPermissions(sps)  
      'enumerates all server permissions in the set for all logins  
      Console.WriteLine("==After grant========")  
  
      For Each spi As ServerPermissionInfo In spis  
         Console.WriteLine(spi.Grantee + " has " & spi.PermissionType.ToString() & " permission.")  
      Next  
      Console.WriteLine("")  
   End Sub  
End Class

Concedendo permissões de servidor no Visual C#

// compile with: /r:Microsoft.SqlServer.Smo.dll /r:Microsoft.SqlServer.ConnectionInfo.dll   
// /r:Microsoft.SqlServer.Management.Sdk.Sfc.dll /r:Microsoft.SqlServer.SqlEnum.dll  
using System;  
using Microsoft.SqlServer.Management.Smo;  
  
public class A {  
   public static void Main() {  
      Server svr = new Server();  
  
      // Creating the logins (Grantee)  
      String vGrantee = "Grantee1";  
      Login login = new Login(svr, vGrantee);  
      login.LoginType = LoginType.SqlLogin;  
      login.Create("password@1");  
  
      String vGrantee2 = "Grantee2";  
      Login login2 = new Login(svr, vGrantee2);  
      login2.LoginType = LoginType.SqlLogin;  
      login2.Create("password@2");  
  
      // Define a ServerPermissionSet that contains permission to Create Endpoint and Alter Any Endpoint.   
      ServerPermissionSet sps = new ServerPermissionSet(ServerPermission.CreateEndpoint);  
      sps.Add(ServerPermission.AlterAnyEndpoint);  
  
      // Grant Create Endpoint and Alter Any Endpoint permissions to Grantee  
      svr.Grant(sps, vGrantee);  
      svr.Grant(sps, vGrantee2);  
  
      // Enumerate and display the server permissions in the set for the grantee specified in the vGrantee string variable.   
      ServerPermissionInfo[] spis = svr.EnumServerPermissions(vGrantee, sps); //enumerates all server permissions for the Grantee from the specified permission set  
  
      Console.WriteLine("====Before revoke===========");  
      foreach (ServerPermissionInfo spi in spis) {  
         Console.WriteLine(spi.Grantee + " has " + spi.PermissionType.ToString() + " permission.");  
      }  
      Console.WriteLine(" ");  
  
      // Revoke the create endpoint permission from the grantee.   
      svr.Revoke(new ServerPermissionSet(ServerPermission.CreateEndpoint), vGrantee);  
  
      // Enumerate and display the server permissions in the set for the grantee specified in the vGrantee string variable.   
      spis = svr.EnumServerPermissions(vGrantee, sps);  
  
      Console.WriteLine("==After revoke=========");  
      foreach (ServerPermissionInfo spi in spis) {  
         Console.WriteLine(spi.Grantee + " has " + spi.PermissionType.ToString() + " permission.");  
      }  
      Console.WriteLine(" ");  
  
      // Grant the Create Server Role permission to the grantee.   
      svr.Grant(new ServerPermissionSet(ServerPermission.ViewAnyDatabase), vGrantee);  
      // Enumerate and display the server permissions for the grantee specified in the vGrantee string variable.   
  
      // enumerates all server permissions for the Grantee  
      spis = svr.EnumServerPermissions(vGrantee);   
  
      Console.WriteLine("==After grant========");  
  
      foreach (ServerPermissionInfo spi in spis) {  
         Console.WriteLine(spi.Grantee + " has " + spi.PermissionType.ToString() + " permission.");  
      }  
      Console.WriteLine("");  
  
      // Enumerate and display the server permissions in the set for all logins.   
      spis = svr.EnumServerPermissions(sps); //enumerates all server permissions in the set for all logins  
  
      Console.WriteLine("==After grant========");  
  
      foreach (ServerPermissionInfo spi in spis) {  
         Console.WriteLine(spi.Grantee + " has " + spi.PermissionType.ToString() + " permission.");  
      }  
      Console.WriteLine("");  
   }  
}

Concedendo permissões de servidor no PowerShell

# Set the path context to the local, default instance of SQL Server.  
CD \sql\localhost\  
$srv = get-item default  
  
#The subject login:  
# "Place Login Name here - has permission to Create Endpoints"  
$vGrantee = "LoginName"  
  
#This sample assumes that the grantee already has permission to Create Endpoints.   
  
$sps  =  New-Object -TypeName Microsoft.SqlServer.Management.SMO.ServerPermissionSet  
  
$sps.CreateEndpoint = $true  
$sps.AlterAnyEndpoint = $true  
  
#This sample assumes that the grantee already has permission to Create Endpoints.   
  
#Enumerate and display the server permissions in the set for the grantee specified  
# in the vGrantee string variable.  
$spis = $srv.EnumServerPermissions($vGrantee)  
  
"===Before revoke============="  
foreach ( $spi in $spis)  
{  
    $spi.Grantee + " has " + $spi.PermissionType + " permission."  
}  
""  
#remove permission to create an endpoint  
$sps.CreateEndpoint = $false  
$srv.Revoke($sps, $vGrantee)  
  
#Enumerate and display the server permissions in the set for the grantee specified  
# in the vGrantee string variable.  
$spis = $srv.EnumServerPermissions($vGrantee)  
  
"===After revoke============="  
foreach ( $spi in $spis)  
{  
    $spi.Grantee + " has " + $spi.PermissionType + " permission."  
}  
""  
#Grant the revoked permissions back  
$sps.CreateEndpoint = $true  
$sps.AlterAnyEndpoint = $true  
$srv.Grant($sps, $vGrantee)  
  
#Enumerate and display the server permissions in the set for the grantee specified  
# in the vGrantee string variable.  
$spis = $srv.EnumServerPermissions($vGrantee)  
  
"===After grant============="  
foreach ( $spi in $spis)  
{  
    $spi.Grantee + " has " + $spi.PermissionType + " permission."  
}  
}

Consulte Também

Hierarquia de permissões (Mecanismo de Banco de Dados)