Goal:
Find out what indexes are being used, if at all, and if the stats on seeks, scans and lookups on the indexes:
index-seek (preferred)
index-scan (worst)
index-lookup
Solution:
Run this scrip against your database
SELECT
o.name AS object_name,
i.name AS NameOfIndex,
i.type_desc as IsItClustered,
u.user_seeks as IndexSeeks, u.user_scans as IndexScans,
u.user_lookups as IndexLookups, u.user_updates as HowManyUpdates,
o.type
FROM
sys.indexes i
JOIN
sys.objects o ON i.object_id = o.object_id
LEFT JOIN
sys.dm_db_index_usage_stats u ON i.object_id = u.OBJECT_ID
AND i.index_id = u.index_id
AND u.database_id = DB_ID()
WHERE
o.type IN ('U', 'V') AND
i.name IS NOT NULL
ORDER BY
o.name, i.name
![]()
![]()
Find out what indexes are being used, if at all, and if the stats on seeks, scans and lookups on the indexes:
index-seek (preferred)
index-scan (worst)
index-lookup
Solution:
Run this scrip against your database
SELECT
o.name AS object_name,
i.name AS NameOfIndex,
i.type_desc as IsItClustered,
u.user_seeks as IndexSeeks, u.user_scans as IndexScans,
u.user_lookups as IndexLookups, u.user_updates as HowManyUpdates,
o.type
FROM
sys.indexes i
JOIN
sys.objects o ON i.object_id = o.object_id
LEFT JOIN
sys.dm_db_index_usage_stats u ON i.object_id = u.OBJECT_ID
AND i.index_id = u.index_id
AND u.database_id = DB_ID()
WHERE
o.type IN ('U', 'V') AND
i.name IS NOT NULL
ORDER BY
o.name, i.name