[SQL Server] Taille des index

SELECT i.[name] AS IndexName
,SUM(s.[used_page_count]) * 8 AS IndexSizeKB
FROM sys.dm_db_partition_stats AS s
INNER JOIN sys.indexes AS i ON s.[object_id] = i.[object_id]
AND s.[index_id] = i.[index_id]
--where i.[name]='MonIndexe'
GROUP BY i.[name]
ORDER BY i.[name]