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dbo.sp_revoke_login_from_proxy

  No additional text.


Syntax

CREATE PROCEDURE dbo.sp_revoke_login_from_proxy
   @name         NVARCHAR(256),
   @proxy_id        INT = NULL,
   @proxy_name    sysname = NULL
   -- must specify only one of above parameter to identify the proxy
AS
BEGIN
   DECLARE @retval   INT
   DECLARE @sid VARBINARY(85)
   DECLARE @is_sysadmin BIT

   SET NOCOUNT ON

   -- Remove any leading/trailing spaces from parameters
   SELECT @proxy_name              = LTRIM(RTRIM(@proxy_name))
   SELECT @name                    = LTRIM(RTRIM(@name))

   -- Turn [nullable] empty string parameters into NULLs
   IF @proxy_name         = '' SELECT @proxy_name = NULL
   IF @name               = '' SELECT @name = NULL

   EXECUTE @retval = sp_verify_proxy_identifiers '@proxy_name',
                                                  '@proxy_id',
                                                   @proxy_name OUTPUT,
                                                   @proxy_id   OUTPUT
   IF (@retval <> 0)
     RETURN(1) -- Failure

  -- is login member of sysadmin role?
  SELECT @is_sysadmin = 0
  IF (@name IS NOT NULL)
  BEGIN
    EXEC @is_sysadmin = sp_sqlagent_is_srvrolemember N'sysadmin', @name -- check role membership
  END

  IF (@is_sysadmin = 1)
  BEGIN
    -- @name is sysadmin, it cannot be revoked from proxy
    -- issue a message and do nothing
    RAISERROR(14395, 10, -1, @name)
  END
  ELSE
  BEGIN
    --force case insensitive comparation for NT users
    SELECT @sid = SUSER_SID(@name, 0)
    IF @sid IS NULL -- then @name is a MSDB role
       SELECT @sid = sid FROM sys.database_principals
       WHERE  name = @name

    --check parametrs validity
    IF (EXISTS(SELECT * FROM sysproxylogin WHERE
       proxy_id                  = @proxy_id AND
       ISNULL(sid, 0)            = ISNULL(@sid, 0)))
    BEGIN
       DELETE FROM sysproxylogin WHERE
       proxy_id     = @proxy_id AND
       ISNULL(sid, 0)= ISNULL(@sid, 0)
    END
    ELSE
    BEGIN
       RAISERROR(14523, -1, -1, @name, @proxy_name)
       RETURN(1) -- Failure
    END
  END

  RETURN(0)
END

 
Last revision 2008RTM
See also

  sp_MSdrop_repl_job_unsafe (Procedure)
       



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