如何修復SQL Server中的碎片索引？

我想碎片整理在SQL Server表，我用這個代碼就知道了索引碎片：如何修復SQL Server中的碎片索引？

sELECT dbschemas.[name] as 'Schema', 
dbtables.[name] as 'Table', 
dbindexes.[name] as 'Index', 
indexstats.avg_fragmentation_in_percent as Fragmentation, 
indexstats.page_count 
    FROM sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL, NULL, NULL) 
    AS indexstats INNER JOIN sys.tables dbtables on dbtables.[object_id] = indexstats.[object_id] 
INNER JOIN sys.schemas dbschemas on dbtables.[schema_id] = dbschemas.[schema_id] 
INNER JOIN sys.indexes AS dbindexes ON dbindexes.[object_id] = indexstats.[object_id] 
AND indexstats.index_id = dbindexes.index_id 
WHERE indexstats.database_id = DB_ID() ORDER BY indexstats.avg_fragmentation_in_percent 
desc

後，我有我使用

DBCC INDEXDEFRAG([MAIL SYSTEMS],EmpMail)

來整理索引結果，然後再利用第一代碼顯示結果它顯示前deframentation相同，沒有網頁被刪除？這有什麼問題，我該如何修復索引？

來源

2015-12-26 user5711356

['REBUILD/REORGANIZE']（https://technet.microsoft.com/en-us/library/ms188388%28v=sql.105%29.aspx）？ – lad2025

'DBCC INDEXFRAG'已過時。更好地使用'ALTER INDEX'和'REBUILD'或'REORGANIZE' –

試試這個代碼，這將根據碎片級別對所有索引進行碎片整理。

SELECT CASE 
     WHEN indexstats.avg_fragmentation_in_percent > 5 
       AND indexstats.avg_fragmentation_in_percent <= 30 THEN 'ALTER INDEX [' + ind.NAME + '] ON [' 
                    + Object_name(ind.OBJECT_ID) 
                    + '] REORGANIZE ; ' 
     ELSE 'ALTER INDEX [' + ind.NAME + '] ON [' 
       + Object_name(ind.OBJECT_ID) + '] REBUILD; ' 
     END, 
     'GO' 
FROM sys.Dm_db_index_physical_stats(Db_id(), NULL, NULL, NULL, NULL) indexstats 
     INNER JOIN sys.indexes ind 
       ON ind.object_id = indexstats.object_id 
        AND ind.index_id = indexstats.index_id 
WHERE indexstats.avg_fragmentation_in_percent > 10 
     AND ind.NAME IS NOT NULL 
ORDER BY indexstats.avg_fragmentation_in_percent DESC

來源

2015-12-26 13:16:43 StackUser

如何修復SQL Server中的碎片索引？

回答

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