我正在使用@Namphibian的脚本,但是我在那里遇到了一些问题。
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
CREATE TABLE #FragmentedIndexes
(
DatabaseName SYSNAME,
SchemaName SYSNAME,
TableName SYSNAME,
IndexName SYSNAME,
[Fragmentation%] FLOAT
)
INSERT INTO #FragmentedIndexes
SELECT
DB_NAME(DB_ID()) AS DatabaseName,
ss.name AS SchemaName,
OBJECT_NAME (s.object_id) AS TableName,
i.name AS IndexName,
s.avg_fragmentation_in_percent AS [Fragmentation%]
FROM
sys.dm_db_index_physical_stats(db_id(),NULL, NULL, NULL, 'SAMPLED') 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 s.object_id = o.object_id
INNER JOIN
sys.schemas ss ON ss.[schema_id] = o.[schema_id]
WHERE
s.database_id = DB_ID()
AND i.index_id != 0
AND s.record_count > 0
AND o.is_ms_shipped = 0
DECLARE @RebuildIndexesSQL NVARCHAR(MAX)
SET @RebuildIndexesSQL = ''
SELECT
@RebuildIndexesSQL = @RebuildIndexesSQL +
CASE
WHEN [Fragmentation%] > 30
THEN CHAR(10) + 'ALTER INDEX ' + QUOTENAME(IndexName) + ' ON '
+ QUOTENAME(SchemaName) + '.'
+ QUOTENAME(TableName) + ' REBUILD;'
WHEN [Fragmentation%] > 10
THEN CHAR(10) + 'ALTER INDEX ' + QUOTENAME(IndexName) + ' ON '
+ QUOTENAME(SchemaName) + '.'
+ QUOTENAME(TableName) + ' REORGANIZE;'
END
FROM #FragmentedIndexes
WHERE [Fragmentation%] > 10
DECLARE @StartOffset INT
DECLARE @Length INT
SET @StartOffset = 0
SET @Length = 4000
WHILE (@StartOffset < LEN(@RebuildIndexesSQL))
BEGIN
PRINT SUBSTRING(@RebuildIndexesSQL, @StartOffset, @Length)
SET @StartOffset = @StartOffset + @Length
END
PRINT SUBSTRING(@RebuildIndexesSQL, @StartOffset, @Length)
EXECUTE sp_executesql @RebuildIndexesSQL
DROP TABLE #FragmentedIndexes
我使用“详细”而不是“抽样”,但仍有一些索引未被重建。我发现了一些碎片化值超过30%的索引,但仍未被重建或重新组织。该脚本已经连续运行了4天每晚运行。我的问题是我无法使用维护计划来完成这个任务。
请问有什么想法吗?