FindUnusedIndexes.sql

SELECT
    objects.name AS Table_name,
    indexes.name AS Index_name,
    dm_db_index_usage_stats.user_seeks,
    dm_db_index_usage_stats.user_scans,
    dm_db_index_usage_stats.user_updates
FROM
    sys.dm_db_index_usage_stats
    INNER JOIN sys.objects ON dm_db_index_usage_stats.OBJECT_ID = objects.OBJECT_ID
    INNER JOIN sys.indexes ON indexes.index_id = dm_db_index_usage_stats.index_id AND dm_db_index_usage_stats.OBJECT_ID = indexes.OBJECT_ID
WHERE
    --indexes.is_primary_key = 0 --This line excludes primary key constarint
    --AND
    --indexes. is_unique = 0 --This line excludes unique key constarint
    --AND 
    dm_db_index_usage_stats.user_updates <> 0 -- This line excludes indexes SQL Server hasn’t done any work with
    AND
    dm_db_index_usage_stats. user_lookups = 0
    AND
    dm_db_index_usage_stats.user_seeks = 0
    AND
    dm_db_index_usage_stats.user_scans = 0
ORDER BY
    dm_db_index_usage_stats.user_updates DESC