SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], migs.last_user_seek, mid.[statement] AS [Database.Schema.Table],mid.equality_columns, mid.inequality_columns, mid.included_columns,migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact,OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows]FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK)INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK)ON migs.group_handle = mig.index_group_handleINNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK)ON mig.index_handle = mid.index_handleINNER JOIN sys.partitions AS p WITH (NOLOCK)ON p.[object_id] = mid.[object_id]WHERE mid.database_id = DB_ID() ORDER BY index_advantage DESC OPTION (RECOMPILE);The following query for missing index gives this output.index_advantage37.99equality_columns[User_ID]inequality_columnsNULLincluded_columnsNULLuser_seeks1378avg_user_impact55.37Table NameEmployeeWhich index should I add?Thanks!
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