SELECT  TOP 20 
        [Total Cost]  = ROUND(avg_total_user_cost * avg_user_impact * (user_seeks + user_scans),0) 
        , avg_user_impact
        , TableName = statement
        ,  [EqualityUsage]= equality_columns 
        ,  [InequalityUsage]= inequality_columns
        , [Include Cloumns] = included_columns

FROM        sys.dm_db_missing_index_groups g 

INNER JOIN    sys.dm_db_missing_index_group_stats s 

       ON s.group_handle = g.index_group_handle 
INNER JOIN    sys.dm_db_missing_index_details d 
       ON d.index_handle = g.index_handle
ORDER BY [Total Cost] DESC;