SQL Server – Find Missing Indexes With Script In Output

Source: http://sqlserverplanet.com/dmvs/missing-indexes-dmv

SELECT mid.statement
    ,migs.avg_total_user_cost * (migs.avg_user_impact / 100.0) * (migs.user_seeks + migs.user_scans) AS improvement_measure
    ,OBJECT_NAME(mid.Object_id)
    ,'CREATE INDEX [idx_' + LEFT(PARSENAME(mid.statement, 1), 32) + '_' + CONVERT(VARCHAR, mig.index_group_handle) + '_' + CONVERT(VARCHAR, mid.index_handle) + ']' + ' ON ' + mid.statement + ' (' + ISNULL(mid.equality_columns, '') + CASE
        WHEN mid.equality_columns IS NOT NULL
            AND mid.inequality_columns IS NOT NULL
            THEN ','
        ELSE ''
        END + ISNULL(mid.inequality_columns, '') + ')' + ISNULL(' INCLUDE (' + mid.included_columns + ')', '') AS create_index_statement
    ,migs.*
    ,mid.database_id
    ,mid.[object_id]
FROM sys.dm_db_missing_index_groups mig
INNER JOIN sys.dm_db_missing_index_group_stats migs ON migs.group_handle = mig.index_group_handle
INNER JOIN sys.dm_db_missing_index_details mid ON mig.index_handle = mid.index_handle
WHERE migs.avg_total_user_cost * (migs.avg_user_impact / 100.0) * (migs.user_seeks + migs.user_scans) > 10
ORDER BY migs.avg_total_user_cost * migs.avg_user_impact * (migs.user_seeks + migs.user_scans) DESC