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【MSSQL】 Maintenance查询

作者:dezai / 发布于2014/2/8/ 400


SELECT TOP 20
DB_NAME() AS DatabaseName
, SCHEMA_NAME(o.Schema_ID) AS SchemaName
, OBJECT_NAME(s.[object_id]) AS TableName
, i.name AS IndexName
, (s.user_updates ) AS [update usage]
, (s.user_seeks + s.user_scans + s.user_lookups)
AS [Retrieval usage]
, (s.user_updates) -
(s.user_seeks + user_scans +
s.user_lookups) AS [Maintenance cost]
, s.system_seeks + s.system_scans + s.system_lookups AS [System usage]
, s.last_user_seek
, s.last_user_scan
, s.last_user_lookup
FROM sys.dm_db_index_usage_stats s
INNER JOIN sys.indexes i ON s.[object_id] = i.[object_id]
AND s.index_id = i.index_id
INNER JOIN sys.objects o ON i.object_id = O.object_id
WHERE s.database_id = DB_ID()
AND i.name IS NOT NULL
AND OBJECTPROPERTY(s.[object_id], 'IsMsShipped') = 0
AND (s.user_seeks + s.user_scans + s.user_lookups) > 0
ORDER BY [Maintenance cost] DESC

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