データベース内のすべてのインデックスを再構築します
非常に大規模なSQL Server 2008 R2データベース（1.5 TB）があり、同じテーブル内の列から列にデータをコピーします。スキーマには多数のインデックスがあり、すべてのインデックスを再構築するデフォルトのクエリまたはスクリプトがあるかどうか疑問に思っていました。同時に統計を更新するようにアドバイスされていますか？
30個のテーブルにはそれぞれ、クラスター化インデックスが1つと非クラスター化インデックスが13個あります
ありがとう。
次のスクリプトを試してください。
Exec sp_msforeachtable 'SET QUOTED_IDENTIFIER ON; ALTER INDEX ALL ON ? REBUILD'
GO
Also
私は（長い検索の後）次のスクリプトを使用することを好みます@fillfactorには、各リーフレベルのページ上のスペースの何パーセントがデータで満たされるかを決定します。
DECLARE @TableName VARCHAR(255)
DECLARE @sql NVARCHAR(500)
DECLARE @fillfactor INT
SET @fillfactor = 80
DECLARE TableCursor CURSOR FOR
SELECT '[' + OBJECT_SCHEMA_NAME([object_id])+'].['+name+']' AS TableName
FROM sys.tables
OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @TableName
WHILE @@FETCH_STATUS = 0
BEGIN
SET @sql = 'ALTER INDEX ALL ON ' + @TableName + ' REBUILD WITH (FILLFACTOR = ' + CONVERT(VARCHAR(3),@fillfactor) + ')'
EXEC (@sql)
FETCH NEXT FROM TableCursor INTO @TableName
END
CLOSE TableCursor
DEALLOCATE TableCursor
GO
詳細については、次のリンクを確認してください。
また、データベース内のインデックスのインデックスの断片化を確認する場合は、次のスクリプトを試してください。
SELECT dbschemas.[name] as 'Schema',
dbtables.[name] as 'Table',
dbindexes.[name] as 'Index',
indexstats.avg_fragmentation_in_percent,
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() AND dbtables.[name] like '%%'
ORDER BY indexstats.avg_fragmentation_in_percent desc
詳細については、次のリンクを確認してください。
ダニエルのスクリプト はすべてを網羅した優れたソリューションのように見えますが、彼でさえラップトップのメモリ不足を認めました。ここに私が思いついたオプションがあります。私の手順は、TechNetの Mohammad Nizamuddinの投稿 に基づいています。すべてのデータベース名を一時テーブルにプルする初期カーソルループを追加し、それを使用してそれらの各データベースからすべてのベーステーブル名をプルします。
オプションで、希望するFILL FACTORを渡し、すべてのデータベースのインデックスを再作成したくない場合は、ターゲットデータベースを指定できます。
--===============================================================
-- Name: sp_RebuildAllIndexes
-- Arguements: [Fill Factor], [Target Database name]
-- Purpose: Loop through all the databases on a server and
-- compile a list of all the table within them.
-- This list is then used to rebuild indexes for
-- all the tables in all the database. Optionally,
-- you may pass a specific database name if you only
-- want to reindex that target database.
--================================================================
CREATE PROCEDURE sp_RebuildAllIndexes(
@FillFactor INT = 90,
@TargetDatabase NVARCHAR(100) = NULL)
AS
BEGIN
DECLARE @TablesToReIndex TABLE (
TableName VARCHAR(200)
);
DECLARE @DbName VARCHAR(50);
DECLARE @TableSelect VARCHAR(MAX);
DECLARE @DatabasesToIndex CURSOR;
IF ISNULL( @TargetDatabase, '' ) = ''
SET @DatabasesToIndex = CURSOR
FOR SELECT NAME
FROM master..sysdatabases
ELSE
SET @DatabasesToIndex = CURSOR
FOR SELECT NAME
FROM master..sysdatabases
WHERE NAME = @TargetDatabase
OPEN DatabasesToIndex
FETCH NEXT FROM DatabasesToIndex INTO @DbName
WHILE @@FETCH_STATUS = 0
BEGIN
SET @TableSelect = 'INSERT INTO @TablesToReIndex SELECT CONCAT(TABLE_CATALOG, ''.'', TABLE_SCHEMA, ''.'', TABLE_NAME) AS TableName FROM '
+ @DbName
+ '.INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = ''base table''';
EXEC sp_executesql
@TableSelect;
FETCH NEXT FROM DatabasesToIndex INTO @DbName
END
CLOSE DatabasesToIndex
DEALLOCATE DatabasesToIndex
DECLARE @TableName VARCHAR(255)
DECLARE TableCursor CURSOR FOR
SELECT TableName
FROM @TablesToReIndex
OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @TableName
WHILE @@FETCH_STATUS = 0
BEGIN
DBCC DBREINDEX(@TableName, ' ', @FillFactor)
FETCH NEXT FROM TableCursor INTO @TableName
END
CLOSE TableCursor
DEALLOCATE TableCursor
END
以下のクエリの「YOUR DATABASE NAME」を置き換えます。
DECLARE @Database NVARCHAR(255)
DECLARE @Table NVARCHAR(255)
DECLARE @cmd NVARCHAR(1000)
DECLARE DatabaseCursor CURSOR READ_ONLY FOR
SELECT name FROM master.sys.databases
WHERE name IN ('YOUR DATABASE NAME') -- databases
AND state = 0 -- database is online
AND is_in_standby = 0 -- database is not read only for log shipping
ORDER BY 1
OPEN DatabaseCursor
FETCH NEXT FROM DatabaseCursor INTO @Database
WHILE @@FETCH_STATUS = 0
BEGIN
SET @cmd = 'DECLARE TableCursor CURSOR READ_ONLY FOR SELECT ''['' + table_catalog + ''].['' + table_schema + ''].['' +
table_name + '']'' as tableName FROM [' + @Database + '].INFORMATION_SCHEMA.TABLES WHERE table_type = ''BASE TABLE'''
-- create table cursor
EXEC (@cmd)
OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @Table
WHILE @@FETCH_STATUS = 0
BEGIN
BEGIN TRY
SET @cmd = 'ALTER INDEX ALL ON ' + @Table + ' REBUILD'
PRINT @cmd -- uncomment if you want to see commands
EXEC (@cmd)
END TRY
BEGIN CATCH
PRINT '---'
PRINT @cmd
PRINT ERROR_MESSAGE()
PRINT '---'
END CATCH
FETCH NEXT FROM TableCursor INTO @Table
END
CLOSE TableCursor
DEALLOCATE TableCursor
FETCH NEXT FROM DatabaseCursor INTO @Database
END
CLOSE DatabaseCursor
DEALLOCATE DatabaseCursor
私のラップトップはメモリを使い果たしましたが、これは非常に大きなテーブルにありました
https://basitaalishan.com/2014/02/23/rebuild-all-indexes-on-all-tables-in-the-sql-server-database/
USE [<mydatabasename>]
Go
--/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--Arguments Data Type Description
-------------- ------------ ------------
--@FillFactor [int] Specifies a percentage that indicates how full the Database Engine should make the leaf level
-- of each index page during index creation or alteration. The valid inputs for this parameter
-- must be an integer value from 1 to 100 The default is 0.
-- For more information, see http://technet.Microsoft.com/en-us/library/ms177459.aspx.
--@PadIndex [varchar](3) Specifies index padding. The PAD_INDEX option is useful only when FILLFACTOR is specified,
-- because PAD_INDEX uses the percentage specified by FILLFACTOR. If the percentage specified
-- for FILLFACTOR is not large enough to allow for one row, the Database Engine internally
-- overrides the percentage to allow for the minimum. The number of rows on an intermediate
-- index page is never less than two, regardless of how low the value of fillfactor. The valid
-- inputs for this parameter are ON or OFF. The default is OFF.
-- For more information, see http://technet.Microsoft.com/en-us/library/ms188783.aspx.
--@SortInTempDB [varchar](3) Specifies whether to store temporary sort results in tempdb. The valid inputs for this
-- parameter are ON or OFF. The default is OFF.
-- For more information, see http://technet.Microsoft.com/en-us/library/ms188281.aspx.
--@OnlineRebuild [varchar](3) Specifies whether underlying tables and associated indexes are available for queries and data
-- modification during the index operation. The valid inputs for this parameter are ON or OFF.
-- The default is OFF.
-- Note: Online index operations are only available in Enterprise edition of Microsoft
-- SQL Server 2005 and above.
-- For more information, see http://technet.Microsoft.com/en-us/library/ms191261.aspx.
--@DataCompression [varchar](4) Specifies the data compression option for the specified index, partition number, or range of
-- partitions. The options for this parameter are as follows:
-- > NONE - Index or specified partitions are not compressed.
-- > ROW - Index or specified partitions are compressed by using row compression.
-- > PAGE - Index or specified partitions are compressed by using page compression.
-- The default is NONE.
-- Note: Data compression feature is only available in Enterprise edition of Microsoft
-- SQL Server 2005 and above.
-- For more information about compression, see http://technet.Microsoft.com/en-us/library/cc280449.aspx.
--@MaxDOP [int] Overrides the max degree of parallelism configuration option for the duration of the index
-- operation. The valid input for this parameter can be between 0 and 64, but should not exceed
-- number of processors available to SQL Server.
-- For more information, see http://technet.Microsoft.com/en-us/library/ms189094.aspx.
--- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
-- Ensure a USE <databasename> statement has been executed first.
SET NOCOUNT ON;
DECLARE @Version [numeric] (18, 10)
,@SQLStatementID [int]
,@CurrentTSQLToExecute [nvarchar](max)
,@FillFactor [int] = 100 -- Change if needed
,@PadIndex [varchar](3) = N'OFF' -- Change if needed
,@SortInTempDB [varchar](3) = N'OFF' -- Change if needed
,@OnlineRebuild [varchar](3) = N'OFF' -- Change if needed
,@LOBCompaction [varchar](3) = N'ON' -- Change if needed
,@DataCompression [varchar](4) = N'NONE' -- Change if needed
,@MaxDOP [int] = NULL -- Change if needed
,@IncludeDataCompressionArgument [char](1);
IF OBJECT_ID(N'TempDb.dbo.#Work_To_Do') IS NOT NULL
DROP TABLE #Work_To_Do
CREATE TABLE #Work_To_Do
(
[sql_id] [int] IDENTITY(1, 1)
PRIMARY KEY ,
[tsql_text] [varchar](1024) ,
[completed] [bit]
)
SET @Version = CAST(LEFT(CAST(SERVERPROPERTY(N'ProductVersion') AS [nvarchar](128)), CHARINDEX('.', CAST(SERVERPROPERTY(N'ProductVersion') AS [nvarchar](128))) - 1) + N'.' + REPLACE(RIGHT(CAST(SERVERPROPERTY(N'ProductVersion') AS [nvarchar](128)), LEN(CAST(SERVERPROPERTY(N'ProductVersion') AS [nvarchar](128))) - CHARINDEX('.', CAST(SERVERPROPERTY(N'ProductVersion') AS [nvarchar](128)))), N'.', N'') AS [numeric](18, 10))
IF @DataCompression IN (N'PAGE', N'ROW', N'NONE')
AND (
@Version >= 10.0
AND SERVERPROPERTY(N'EngineEdition') = 3
)
BEGIN
SET @IncludeDataCompressionArgument = N'Y'
END
IF @IncludeDataCompressionArgument IS NULL
BEGIN
SET @IncludeDataCompressionArgument = N'N'
END
INSERT INTO #Work_To_Do ([tsql_text], [completed])
SELECT 'ALTER INDEX [' + i.[name] + '] ON' + SPACE(1) + QUOTENAME(t2.[TABLE_CATALOG]) + '.' + QUOTENAME(t2.[TABLE_SCHEMA]) + '.' + QUOTENAME(t2.[TABLE_NAME]) + SPACE(1) + 'REBUILD WITH (' + SPACE(1) + + CASE
WHEN @PadIndex IS NULL
THEN 'PAD_INDEX =' + SPACE(1) + CASE i.[is_padded]
WHEN 1
THEN 'ON'
WHEN 0
THEN 'OFF'
END
ELSE 'PAD_INDEX =' + SPACE(1) + @PadIndex
END + CASE
WHEN @FillFactor IS NULL
THEN ', FILLFACTOR =' + SPACE(1) + CONVERT([varchar](3), REPLACE(i.[fill_factor], 0, 100))
ELSE ', FILLFACTOR =' + SPACE(1) + CONVERT([varchar](3), @FillFactor)
END + CASE
WHEN @SortInTempDB IS NULL
THEN ''
ELSE ', SORT_IN_TEMPDB =' + SPACE(1) + @SortInTempDB
END + CASE
WHEN @OnlineRebuild IS NULL
THEN ''
ELSE ', ONLINE =' + SPACE(1) + @OnlineRebuild
END + ', STATISTICS_NORECOMPUTE =' + SPACE(1) + CASE st.[no_recompute]
WHEN 0
THEN 'OFF'
WHEN 1
THEN 'ON'
END + ', ALLOW_ROW_LOCKS =' + SPACE(1) + CASE i.[allow_row_locks]
WHEN 0
THEN 'OFF'
WHEN 1
THEN 'ON'
END + ', ALLOW_PAGE_LOCKS =' + SPACE(1) + CASE i.[allow_page_locks]
WHEN 0
THEN 'OFF'
WHEN 1
THEN 'ON'
END + CASE
WHEN @IncludeDataCompressionArgument = N'Y'
THEN CASE
WHEN @DataCompression IS NULL
THEN ''
ELSE ', DATA_COMPRESSION =' + SPACE(1) + @DataCompression
END
ELSE ''
END + CASE
WHEN @MaxDop IS NULL
THEN ''
ELSE ', MAXDOP =' + SPACE(1) + CONVERT([varchar](2), @MaxDOP)
END + SPACE(1) + ')'
,0
FROM [sys].[tables] t1
INNER JOIN [sys].[indexes] i ON t1.[object_id] = i.[object_id]
AND i.[index_id] > 0
AND i.[type] IN (1, 2)
INNER JOIN [INFORMATION_SCHEMA].[TABLES] t2 ON t1.[name] = t2.[TABLE_NAME]
AND t2.[TABLE_TYPE] = 'BASE TABLE'
INNER JOIN [sys].[stats] AS st WITH (NOLOCK) ON st.[object_id] = t1.[object_id]
AND st.[name] = i.[name]
SELECT @SQLStatementID = MIN([sql_id])
FROM #Work_To_Do
WHERE [completed] = 0
WHILE @SQLStatementID IS NOT NULL
BEGIN
SELECT @CurrentTSQLToExecute = [tsql_text]
FROM #Work_To_Do
WHERE [sql_id] = @SQLStatementID
PRINT @CurrentTSQLToExecute
EXEC [sys].[sp_executesql] @CurrentTSQLToExecute
UPDATE #Work_To_Do
SET [completed] = 1
WHERE [sql_id] = @SQLStatementID
SELECT @SQLStatementID = MIN([sql_id])
FROM #Work_To_Do
WHERE [completed] = 0
END
DECLARE @String NVARCHAR(MAX);
USE Databse Name;
SELECT @String
=
(
SELECT 'ALTER INDEX [' + dbindexes.[name] + '] ON [' + db.name + '].[' + dbschemas.[name] + '].[' + dbtables.[name]
+ '] REBUILD PARTITION = ALL WITH (DATA_COMPRESSION = PAGE);' + CHAR(10) AS [text()]
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
INNER JOIN sys.databases AS db
ON db.database_id = indexstats.database_id
WHERE dbindexes.name IS NOT NULL
AND indexstats.database_id = DB_ID()
AND indexstats.avg_fragmentation_in_percent >= 10
ORDER BY indexstats.page_count DESC
FOR XML PATH('')
);
EXEC (@String);