use bn  
SELECT getdate(),name,[avg_fragmentation_in_percent]  
   FROM sys.dm_db_index_physical_stats   
      (DB_ID(N'bn'), OBJECT_ID(N'bn.dbo.SYS_DEV_ArchiveData'), NULL, NULL , 'LIMITED') as stat  
      inner join sys.indexes as ind on stat.index_id= ind.index_id and stat.object_id=ind.object_id