--外部碎片率>10 表示外部碎片率發生;
--內部碎片率<75 表示內部碎片率發生
SELECT OBJECT_NAME(dt.object_id) 表名 ,
si.name 索引名 ,
外部碎片率=CASE WHEN
dt.avg_fragmentation_in_percent>10 THEN '碎片率高'
ELSE '正常'
end
,
內部碎片率= CASE WHEN dt.avg_page_space_used_in_percent <75 THEN '正常'
ELSE '碎片率高'
END
FROM ( SELECT object_id ,
index_id ,
avg_fragmentation_in_percent ,
avg_page_space_used_in_percent
FROM sys.dm_db_index_physical_stats(DB_ID ('jinriairv2'), NULL, NULL,
NULL, 'DETAILED')
WHERE index_id <> 0
) AS dt
INNER JOIN sys.indexes si ON si.object_id = dt.object_id
AND si.index_id = dt.index_id
AND dt.avg_fragmentation_in_percent >10
AND dt.avg_page_space_used_in_percent <75
ORDER BY avg_fragmentation_in_percent DESC
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