인덱스 조각화 확인

--sys.dm_db_index_physical_stats(디비ID, object_ID, indexid(null은 모든인덱스), partition_number , mode(Valid inputs are DEFAULT, NULL, LIMITED, SAMPLED, or DETAILED. The default (NULL) is LIMITED.)

select a.index_id, name, avg_fragmentation_in_percent
from sys.dm_db_index_physical_stats (DB_ID(), OBJECT_ID('테이블이름'), NULL, NULL, NULL) AS a
inner join sys.indexes AS b
 on a.object_id = b.object_id and a.index_id = b.index_id