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SQL Server - Find unused indexes on azure SQL database scripts

In this article we will learn how to  find unused all indexes on azure sql database or sql server database.

 
Unused Index In Azure SQL Database
 

 
SELECT TOP 50
o.name AS ObjectName
,i.name AS IndexName
,i.index_id AS IndexID
,dm_ius.user_seeks AS UserSeek
,dm_ius.user_scans AS UserScans
,dm_ius.user_lookups AS UserLookups
,dm_ius.user_updates AS UserUpdates
,p.TableRows
,'DROP INDEX ' + QUOTENAME(i.name)
+' ON ' + QUOTENAME(s.name) + '.'
+QUOTENAME(OBJECT_NAME(dm_ius.OBJECT_ID)) AS 'Drop Statement'
FROM sys.dm_db_index_usage_stats dm_ius
INNER JOIN sys.indexes i ON i.index_id = dm_ius.index_id
AND dm_ius.OBJECT_ID = i.OBJECT_ID
INNER JOIN sys.objects o ON dm_ius.OBJECT_ID = o.OBJECT_ID
INNER JOIN sys.schemas s ON o.schema_id = s.schema_id
INNER JOIN (SELECT SUM(p.rows) TableRows, p.index_id, p.OBJECT_ID
FROM sys.partitions p GROUP BY p.index_id, p.OBJECT_ID) p
ON p.index_id = dm_ius.index_id AND dm_ius.OBJECT_ID = p.OBJECT_ID
WHERE OBJECTPROPERTY(dm_ius.OBJECT_ID,'IsUserTable') = 1
AND dm_ius.database_id = DB_ID()
AND i.type_desc = 'nonclustered'
AND i.is_primary_key = 0
AND i.is_unique_constraint = 0
AND dm_ius.user_scans = 0
AND dm_ius.user_seeks = 0
AND dm_ius.user_lookups = 0
ORDER BY (dm_ius.user_seeks + dm_ius.user_scans + dm_ius.user_lookups) ASC
GO

 

Thank You

About Author

Brijesh Kumar

Database Developer

I have more then 6 years Experience in Microsoft Technologies - SQL Server Database, ETL Azure Cloud - Azure SQL Database, CosmosDB, Azure Data Factory, PowerBI, Web Job, Azure Function, Azure Storage, Web Apps, Powershall and Database Migration On-Premise to Azure Cloud.
LinkedIn : https://www.linkedin.com



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