查询SQL SERVER碎片

-- 查碎片可以用下面的语句(整理碎片可以用 ALTER INDEX index_name ON table_name REBUILD)

SELECT 

    schema_name = SCH.name,

    table_name = TB.name,

    index_name = IX.name,

    IDXF.avg_fragmentation_in_percent 

FROM sys.dm_db_index_physical_stats(DB_ID(), NULL, NULL, NULL, NULL) IDXF,

    sys.tables TB,

    sys.schemas SCH,

    SYS.indexes IX

WHERE IDXF.object_id = TB.object_id

    AND TB.schema_id = SCH.schema_id

    AND IDXF.object_id = IX.object_id

    AND IDXF.index_id = IX.index_id

    AND IDXF.avg_fragmentation_in_percent  > 5

ORDER BY table_name, index_name

IDXF.avg_fragmentation_in_percent  > 5的意思是查询碎片大于5%的。