Index::Defrag Script v4.0

SQL SERVER 2008 SP 2 이상

출처: http://sqlfool.com/category/sql-scripts/

인덱스 조각화를 얻고 실행하는 sp 이다.
SQLl 2005의 sp2 이상에서 가능하다.


1. 테이블 생성

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/* Scroll down to the see notes, disclaimers, and licensing information */    DECLARE @indexDefragLog_rename      VARCHAR(128)     , @indexDefragExclusion_rename  VARCHAR(128)     , @indexDefragStatus_rename     VARCHAR(128);    SELECT @indexDefragLog_rename       = 'dba_indexDefragLog_obsolete_' + CONVERT(VARCHAR(10), GETDATE(), 112)     , @indexDefragExclusion_rename  = 'dba_indexDefragExclusion_obsolete_' + CONVERT(VARCHAR(10), GETDATE(), 112)     , @indexDefragStatus_rename     = 'dba_indexDefragStatus_obsolete_' + CONVERT(VARCHAR(10), GETDATE(), 112);    IF Exists(SELECT [OBJECT_ID] FROM sys.tables WHERE [name] = 'dba_indexDefragLog')     EXECUTE SP_RENAME dba_indexDefragLog, @indexDefragLog_rename;    IF Exists(SELECT [OBJECT_ID] FROM sys.tables WHERE [name] = 'dba_indexDefragExclusion')     EXECUTE SP_RENAME dba_indexDefragExclusion, @indexDefragExclusion_rename;    IF Exists(SELECT [OBJECT_ID] FROM sys.tables WHERE [name] = 'dba_indexDefragStatus')     EXECUTE SP_RENAME dba_indexDefragStatus, @indexDefragStatus_rename; Go    CREATE TABLE dbo.dba_indexDefragLog (       indexDefrag_id    INT IDENTITY(1,1)   Not Null     , databaseID        INT                 Not Null     , databaseName      NVARCHAR(128)       Not Null     , objectID          INT                 Not Null     , objectName        NVARCHAR(128)       Not Null     , indexID           INT                 Not Null     , indexName         NVARCHAR(128)       Not Null     , partitionNumber   SMALLINT            Not Null     , fragmentation     FLOAT               Not Null     , page_count        INT                 Not Null     , dateTimeStart     DATETIME            Not Null     , dateTimeEnd       DATETIME            Null     , durationSeconds   INT                 Null     , sqlStatement      VARCHAR(4000)       Null     , errorMessage      VARCHAR(1000)       Null        CONSTRAINT PK_indexDefragLog_v40         PRIMARY KEY CLUSTERED (indexDefrag_id) );    PRINT 'dba_indexDefragLog Table Created';    CREATE TABLE dbo.dba_indexDefragExclusion (       databaseID        INT                 Not Null     , databaseName      NVARCHAR(128)       Not Null     , objectID          INT                 Not Null     , objectName        NVARCHAR(128)       Not Null     , indexID           INT                 Not Null     , indexName         NVARCHAR(128)       Not Null     , exclusionMask     INT                 Not Null         /* 1=Sunday, 2=Monday, 4=Tuesday, 8=Wednesday, 16=Thursday, 32=Friday, 64=Saturday */        CONSTRAINT PK_indexDefragExclusion_v40         PRIMARY KEY CLUSTERED (databaseID, objectID, indexID) );    PRINT 'dba_indexDefragExclusion Table Created';    CREATE TABLE dbo.dba_indexDefragStatus (       databaseID        INT     , databaseName      NVARCHAR(128)     , objectID          INT     , indexID           INT     , partitionNumber   SMALLINT     , fragmentation     FLOAT     , page_count        INT     , range_scan_count  BIGINT     , schemaName        NVARCHAR(128)   Null     , objectName        NVARCHAR(128)   Null     , indexName         NVARCHAR(128)   Null     , scanDate          DATETIME            , defragDate        DATETIME        Null     , printStatus       BIT             DEFAULT(0)     , exclusionMask     INT             DEFAULT(0)        CONSTRAINT PK_indexDefragStatus_v40         PRIMARY KEY CLUSTERED(databaseID, objectID, indexID, partitionNumber) );    PRINT 'dba_indexDefragStatus Table Created';

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1	2. 프로시저 생성

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--=================== -- proc --===================    IF OBJECTPROPERTY(OBJECT_ID('dbo.dba_indexDefrag_sp'), N'IsProcedure') = 1 BEGIN     DROP PROCEDURE dbo.dba_indexDefrag_sp;     PRINT 'Procedure dba_indexDefrag_sp dropped'; END; Go    CREATE PROCEDURE dbo.dba_indexDefrag_sp        /* Declare Parameters */       @minFragmentation     FLOAT           = 10.0          /* in percent, will not defrag if fragmentation less than specified */     , @rebuildThreshold     FLOAT           = 30.0          /* in percent, greater than @rebuildThreshold will result in rebuild instead of reorg */     , @executeSQL           BIT             = 1             /* 1 = execute; 0 = print command only */     , @defragOrderColumn    NVARCHAR(20)    = 'range_scan_count'         /* Valid options are: range_scan_count, fragmentation, page_count */     , @defragSortOrder      NVARCHAR(4)     = 'DESC'         /* Valid options are: ASC, DESC */     , @timeLimit            INT             = 720 /* defaulted to 12 hours */         /* Optional time limitation; expressed in minutes */     , @DATABASE             VARCHAR(128)    = Null         /* Option to specify a database name; null will return all */     , @tableName            VARCHAR(4000)   = Null  -- databaseName.schema.tableName         /* Option to specify a table name; null will return all */     , @forceRescan          BIT             = 0         /* Whether or not to force a rescan of indexes; 1 = force, 0 = use existing scan, if available */     , @scanMode             VARCHAR(10)     = N'LIMITED'         /* Options are LIMITED, SAMPLED, and DETAILED */     , @minPageCount         INT             = 8         /*  MS recommends > 1 extent (8 pages) */     , @maxPageCount         INT             = Null         /* NULL = no limit */     , @excludeMaxPartition  BIT             = 0         /* 1 = exclude right-most populated partition; 0 = do not exclude; see notes for caveats */     , @onlineRebuild        BIT             = 1             /* 1 = online rebuild; 0 = offline rebuild; only in Enterprise */     , @sortInTempDB         BIT             = 1         /* 1 = perform sort operation in TempDB; 0 = perform sort operation in the index's database */     , @maxDopRestriction    TINYINT         = Null         /* Option to restrict the number of processors for the operation; only in Enterprise */     , @printCommands        BIT             = 0             /* 1 = print commands; 0 = do not print commands */     , @printFragmentation   BIT             = 0         /* 1 = print fragmentation prior to defrag;            0 = do not print */     , @defragDelay          CHAR(8)         = '00:00:05'         /* time to wait between defrag commands */     , @debugMode            BIT             = 0         /* display some useful comments to help determine if/where issues occur */    AS /*********************************************************************************     Name:       dba_indexDefrag_sp        Author:     Michelle Ufford, http://sqlfool.com        Purpose:    Defrags one or more indexes for one or more databases        Notes:        CAUTION: TRANSACTION LOG SIZE SHOULD BE MONITORED CLOSELY WHEN DEFRAGMENTING.              DO NOT RUN UNATTENDED ON LARGE DATABASES DURING BUSINESS HOURS.          @minFragmentation     defaulted to 10%, will not defrag if fragmentation                             is less than that          @rebuildThreshold     defaulted to 30% as recommended by Microsoft in BOL;                             greater than 30% will result in rebuild instead          @executeSQL           1 = execute the SQL generated by this proc;                             0 = print command only          @defragOrderColumn    Defines how to prioritize the order of defrags.  Only                             used if @executeSQL = 1.                              Valid options are:                             range_scan_count = count of range and table scans on the                                                index; in general, this is what benefits                                                the most from defragmentation                             fragmentation    = amount of fragmentation in the index;                                                the higher the number, the worse it is                             page_count       = number of pages in the index; affects                                                how long it takes to defrag an index          @defragSortOrder      The sort order of the ORDER BY clause.                             Valid options are ASC (ascending) or DESC (descending).          @timeLimit            Optional, limits how much time can be spent performing                             index defrags; expressed in minutes.                                NOTE: The time limit is checked BEFORE an index defrag                                   is begun, thus a long index defrag can exceed the                                   time limitation.          @database             Optional, specify specific database name to defrag;                             If not specified, all non-system databases will                             be defragged.          @tableName            Specify if you only want to defrag indexes for a                             specific table, format = databaseName.schema.tableName;                             if not specified, all tables will be defragged.          @forceRescan          Whether or not to force a rescan of indexes.  If set                             to 0, a rescan will not occur until all indexes have                             been defragged.  This can span multiple executions.                             1 = force a rescan                             0 = use previous scan, if there are indexes left to defrag          @scanMode             Specifies which scan mode to use to determine                             fragmentation levels.  Options are:                             LIMITED - scans the parent level; quickest mode,                                       recommended for most cases.                             SAMPLED - samples 1% of all data pages; if less than                                       10k pages, performs a DETAILED scan.                             DETAILED - scans all data pages.  Use great care with                                        this mode, as it can cause performance issues.          @minPageCount         Specifies how many pages must exist in an index in order                             to be considered for a defrag.  Defaulted to 8 pages, as                             Microsoft recommends only defragging indexes with more                             than 1 extent (8 pages).                                 NOTE: The @minPageCount will restrict the indexes that                             are stored in dba_indexDefragStatus table.          @maxPageCount         Specifies the maximum number of pages that can exist in                             an index and still be considered for a defrag.  Useful                             for scheduling small indexes during business hours and                             large indexes for non-business hours.                                NOTE: The @maxPageCount will restrict the indexes that                             are defragged during the current operation; it will not                             prevent indexes from being stored in the                             dba_indexDefragStatus table.  This way, a single scan                             can support multiple page count thresholds.          @excludeMaxPartition  If an index is partitioned, this option specifies whether                             to exclude the right-most populated partition.  Typically,                             this is the partition that is currently being written to in                             a sliding-window scenario.  Enabling this feature may reduce                             contention.  This may not be applicable in other types of                             partitioning scenarios.  Non-partitioned indexes are                             unaffected by this option.                             1 = exclude right-most populated partition                             0 = do not exclude          @onlineRebuild        1 = online rebuild;                             0 = offline rebuild          @sortInTempDB         Specifies whether to defrag the index in TEMPDB or in the                             database the index belongs to.  Enabling this option may                             result in faster defrags and prevent database file size                             inflation.                             1 = perform sort operation in TempDB                             0 = perform sort operation in the index's database          @maxDopRestriction    Option to specify a processor limit for index rebuilds          @printCommands        1 = print commands to screen;                             0 = do not print commands          @printFragmentation   1 = print fragmentation to screen;                             0 = do not print fragmentation          @defragDelay          Time to wait between defrag commands; gives the                             server a little time to catch up          @debugMode            1 = display debug comments; helps with troubleshooting                             0 = do not display debug comments        Called by:  SQL Agent Job or DBA        ----------------------------------------------------------------------------     DISCLAIMER:     This code and information are provided "AS IS" without warranty of any kind,     either expressed or implied, including but not limited to the implied     warranties or merchantability and/or fitness for a particular purpose.     ----------------------------------------------------------------------------     LICENSE:     This index defrag script is free to download and use for personal, educational,     and internal corporate purposes, provided that this header is preserved.     Redistribution or sale of this index defrag script, in whole or in part, is     prohibited without the author's express written consent.     ----------------------------------------------------------------------------     Date        Initials    Version Description     ----------------------------------------------------------------------------     2007-12-18  MFU         1.0     Initial Release     2008-10-17  MFU         1.1     Added @defragDelay, CIX_temp_indexDefragList     2008-11-17  MFU         1.2     Added page_count to log table                                     , added @printFragmentation option     2009-03-17  MFU         2.0     Provided support for centralized execution                                     , consolidated Enterprise & Standard versions                                     , added @debugMode, @maxDopRestriction                                     , modified LOB and partition logic      2009-06-18  MFU         3.0     Fixed bug in LOB logic, added @scanMode option                                     , added support for stat rebuilds (@rebuildStats)                                     , support model and msdb defrag                                     , added columns to the dba_indexDefragLog table                                     , modified logging to show "in progress" defrags                                     , added defrag exclusion list (scheduling)     2009-08-28  MFU         3.1     Fixed read_only bug for database lists     2010-04-20  MFU         4.0     Added time limit option                                     , added static table with rescan logic                                     , added parameters for page count & SORT_IN_TEMPDB                                     , added try/catch logic and additional debug options                                     , added options for defrag prioritization                                     , fixed bug for indexes with allow_page_lock = off                                     , added option to exclude right-most partition                                     , removed @rebuildStats option                                     , refer to http://sqlfool.com for full release notes *********************************************************************************     Example of how to call this script:            Exec dbo.dba_indexDefrag_sp               @executeSQL           = 1             , @printCommands        = 1             , @debugMode            = 1             , @printFragmentation   = 1             , @forceRescan          = 1             , @maxDopRestriction    = 1             , @minPageCount         = 8             , @maxPageCount         = Null             , @minFragmentation     = 1             , @rebuildThreshold     = 30             , @defragDelay          = '00:00:05'             , @defragOrderColumn    = 'page_count'             , @defragSortOrder      = 'DESC'             , @excludeMaxPartition  = 1             , @timeLimit            = Null; *********************************************************************************/                                                              SET NOCOUNT ON; SET XACT_Abort ON; SET Quoted_Identifier ON;    BEGIN        BEGIN Try            /* Just a little validation... */         IF @minFragmentation IS Null             Or @minFragmentation Not Between 0.00 And 100.0                 SET @minFragmentation = 10.0;            IF @rebuildThreshold IS Null             Or @rebuildThreshold Not Between 0.00 And 100.0                 SET @rebuildThreshold = 30.0;            IF @defragDelay Not Like '00:[0-5][0-9]:[0-5][0-9]'             SET @defragDelay = '00:00:05';            IF @defragOrderColumn IS Null             Or @defragOrderColumn Not In ('range_scan_count', 'fragmentation', 'page_count')                 SET @defragOrderColumn = 'range_scan_count';            IF @defragSortOrder IS Null             Or @defragSortOrder Not In ('ASC', 'DESC')                 SET @defragSortOrder = 'DESC';            IF @scanMode Not In ('LIMITED', 'SAMPLED', 'DETAILED')             SET @scanMode = 'LIMITED';            IF @debugMode IS Null             SET @debugMode = 0;            IF @forceRescan IS Null             SET @forceRescan = 0;            IF @sortInTempDB IS Null             SET @sortInTempDB = 1;               IF @debugMode = 1 RAISERROR('Undusting the cogs and starting up...', 0, 42) WITH NoWait;            /* Declare our variables */         DECLARE   @objectID                 INT                 , @databaseID               INT                 , @databaseName             NVARCHAR(128)                 , @indexID                  INT                 , @partitionCount           BIGINT                 , @schemaName               NVARCHAR(128)                 , @objectName               NVARCHAR(128)                 , @indexName                NVARCHAR(128)                 , @partitionNumber          SMALLINT                 , @fragmentation            FLOAT                 , @pageCount                INT                 , @sqlCommand               NVARCHAR(4000)                 , @rebuildCommand           NVARCHAR(200)                 , @dateTimeStart            DATETIME                 , @dateTimeEnd              DATETIME                 , @containsLOB              BIT                 , @editionCheck             BIT                 , @debugMessage             NVARCHAR(4000)                 , @updateSQL                NVARCHAR(4000)                 , @partitionSQL             NVARCHAR(4000)                 , @partitionSQL_Param       NVARCHAR(1000)                 , @LOB_SQL                  NVARCHAR(4000)                 , @LOB_SQL_Param            NVARCHAR(1000)                 , @indexDefrag_id           INT                 , @startDateTime            DATETIME                 , @endDateTime              DATETIME                 , @getIndexSQL              NVARCHAR(4000)                 , @getIndexSQL_Param        NVARCHAR(4000)                 , @allowPageLockSQL         NVARCHAR(4000)                 , @allowPageLockSQL_Param   NVARCHAR(4000)                 , @allowPageLocks           INT                 , @excludeMaxPartitionSQL   NVARCHAR(4000);            /* Initialize our variables */         SELECT @startDateTime = GETDATE()             , @endDateTime = DATEADD(MINUTE, @timeLimit, GETDATE());            /* Create our temporary tables */         CREATE TABLE #databaseList         (               databaseID        INT             , databaseName      VARCHAR(128)             , scanStatus        BIT         );            CREATE TABLE #processor         (               [INDEX]           INT             , Name              VARCHAR(128)             , Internal_Value    INT             , Character_Value   INT         );            CREATE TABLE #maxPartitionList         (               databaseID        INT             , objectID          INT             , indexID           INT             , maxPartition      INT         );            IF @debugMode = 1 RAISERROR('Beginning validation...', 0, 42) WITH NoWait;            /* Make sure we're not exceeding the number of processors we have available */         INSERT INTO #processor         EXECUTE XP_MSVER 'ProcessorCount';            IF @maxDopRestriction IS Not Null And @maxDopRestriction > (SELECT Internal_Value FROM #processor)             SELECT @maxDopRestriction = Internal_Value             FROM #processor;            /* Check our server version; 1804890536 = Enterprise, 610778273 = Enterprise Evaluation, -2117995310 = Developer */         IF (SELECT SERVERPROPERTY('EditionID')) In (1804890536, 610778273, -2117995310)             SET @editionCheck = 1 -- supports online rebuilds         ELSE             SET @editionCheck = 0; -- does not support online rebuilds            /* Output the parameters we're working with */         IF @debugMode = 1         BEGIN                SELECT @debugMessage = 'Your selected parameters are...             Defrag indexes with fragmentation greater than ' + CAST(@minFragmentation AS VARCHAR(10)) + ';             Rebuild indexes with fragmentation greater than ' + CAST(@rebuildThreshold AS VARCHAR(10)) + ';             You' + CASE WHEN @executeSQL = 1 THEN ' DO' ELSE ' DO NOT' END + ' want the commands to be executed automatically;             You want to defrag indexes in ' + @defragSortOrder + ' order of the ' + UPPER(@defragOrderColumn) + ' value;             You have' + CASE WHEN @timeLimit IS Null THEN ' not specified a time limit;' ELSE ' specified a time limit of '                 + CAST(@timeLimit AS VARCHAR(10)) END + ' minutes;             ' + CASE WHEN @DATABASE IS Null THEN 'ALL databases' ELSE 'The ' + @DATABASE + ' database' END + ' will be defragged;             ' + CASE WHEN @tableName IS Null THEN 'ALL tables' ELSE 'The ' + @tableName + ' table' END + ' will be defragged;             We' + CASE WHEN Exists(SELECT TOP 1 * FROM dbo.dba_indexDefragStatus WHERE defragDate IS Null)                 And @forceRescan <> 1 THEN ' WILL NOT' ELSE ' WILL' END + ' be rescanning indexes;             The scan will be performed in ' + @scanMode + ' mode;             You want to limit defrags to indexes with' + CASE WHEN @maxPageCount IS Null THEN ' more than '                 + CAST(@minPageCount AS VARCHAR(10)) ELSE                 ' between ' + CAST(@minPageCount AS VARCHAR(10))                 + ' and ' + CAST(@maxPageCount AS VARCHAR(10)) END + ' pages;             Indexes will be defragged' + CASE WHEN @editionCheck = 0 Or @onlineRebuild = 0 THEN ' OFFLINE;' ELSE ' ONLINE;' END + '             Indexes will be sorted in' + CASE WHEN @sortInTempDB = 0 THEN ' the DATABASE' ELSE ' TEMPDB;' END + '             Defrag operations will utilize ' + CASE WHEN @editionCheck = 0 Or @maxDopRestriction IS Null                 THEN 'system defaults for processors;'                 ELSE CAST(@maxDopRestriction AS VARCHAR(2)) + ' processors;' END + '             You' + CASE WHEN @printCommands = 1 THEN ' DO' ELSE ' DO NOT' END + ' want to print the ALTER INDEX commands;             You' + CASE WHEN @printFragmentation = 1 THEN ' DO' ELSE ' DO NOT' END + ' want to output fragmentation levels;             You want to wait ' + @defragDelay + ' (hh:mm:ss) between defragging indexes;             You want to run in' + CASE WHEN @debugMode = 1 THEN ' DEBUG' ELSE ' SILENT' END + ' mode.';                RAISERROR(@debugMessage, 0, 42) WITH NoWait;            END;            IF @debugMode = 1 RAISERROR('Grabbing a list of our databases...', 0, 42) WITH NoWait;            /* Retrieve the list of databases to investigate */         INSERT INTO #databaseList         SELECT database_id             , name             , 0 -- not scanned yet for fragmentation         FROM sys.databases         WHERE name = IsNull(@DATABASE, name)             And [name] Not In ('master', 'tempdb')-- exclude system databases             And [STATE] = 0 -- state must be ONLINE             And is_read_only = 0;  -- cannot be read_only            /* Check to see if we have indexes in need of defrag; otherwise, re-scan the database(s) */         IF Not Exists(SELECT TOP 1 * FROM dbo.dba_indexDefragStatus WHERE defragDate IS Null)             Or @forceRescan = 1         BEGIN                /* Truncate our list of indexes to prepare for a new scan */             TRUNCATE TABLE dbo.dba_indexDefragStatus;                IF @debugMode = 1 RAISERROR('Looping through our list of databases and checking for fragmentation...', 0, 42) WITH NoWait;                /* Loop through our list of databases */             WHILE (SELECT COUNT(*) FROM #databaseList WHERE scanStatus = 0) > 0             BEGIN                    SELECT TOP 1 @databaseID = databaseID                 FROM #databaseList                 WHERE scanStatus = 0;                    SELECT @debugMessage = '  working on ' + DB_NAME(@databaseID) + '...';                    IF @debugMode = 1                     RAISERROR(@debugMessage, 0, 42) WITH NoWait;                   /* Determine which indexes to defrag using our user-defined parameters */                 INSERT INTO dbo.dba_indexDefragStatus                 (                       databaseID                     , databaseName                     , objectID                     , indexID                     , partitionNumber                     , fragmentation                     , page_count                     , range_scan_count                     , scanDate                 )                 SELECT                       ps.database_id AS 'databaseID'                     , QUOTENAME(DB_NAME(ps.database_id)) AS 'databaseName'                     , ps.OBJECT_ID AS 'objectID'                     , ps.index_id AS 'indexID'                     , ps.partition_number AS 'partitionNumber'                     , SUM(ps.avg_fragmentation_in_percent) AS 'fragmentation'                     , SUM(ps.page_count) AS 'page_count'                     , os.range_scan_count                     , GETDATE() AS 'scanDate'                 FROM sys.dm_db_index_physical_stats(@databaseID, OBJECT_ID(@tableName), Null , Null, @scanMode) AS ps                 Join sys.dm_db_index_operational_stats(@databaseID, OBJECT_ID(@tableName), Null , Null) AS os                     ON ps.database_id = os.database_id                     And ps.OBJECT_ID = os.OBJECT_ID                     and ps.index_id = os.index_id                     And ps.partition_number = os.partition_number                 WHERE avg_fragmentation_in_percent >= @minFragmentation                     And ps.index_id > 0 -- ignore heaps                     And ps.page_count > @minPageCount                     And ps.index_level = 0 -- leaf-level nodes only, supports @scanMode                 GROUP BY ps.database_id                     , QUOTENAME(DB_NAME(ps.database_id))                     , ps.OBJECT_ID                     , ps.index_id                     , ps.partition_number                     , os.range_scan_count                 OPTION (MaxDop 2);                    /* Do we want to exclude right-most populated partition of our partitioned indexes? */                 IF @excludeMaxPartition = 1                 BEGIN                        SET @excludeMaxPartitionSQL = '                         Select ' + CAST(@databaseID AS VARCHAR(10)) + ' As [databaseID]                             , [object_id]                             , index_id                             , Max(partition_number) As [maxPartition]                         From ' + DB_NAME(@databaseID) + '.sys.partitions                         Where partition_number > 1                             And [rows] > 0                         Group By object_id                             , index_id;';                        INSERT INTO #maxPartitionList                     EXECUTE SP_EXECUTESQL @excludeMaxPartitionSQL;                    END;                    /* Keep track of which databases have already been scanned */                 UPDATE #databaseList                 SET scanStatus = 1                 WHERE databaseID = @databaseID;                END                /* We don't want to defrag the right-most populated partition, so                delete any records for partitioned indexes where partition = Max(partition) */             IF @excludeMaxPartition = 1             BEGIN                    DELETE ids                 FROM dbo.dba_indexDefragStatus AS ids                 Join #maxPartitionList AS mpl                     ON ids.databaseID = mpl.databaseID                     And ids.objectID = mpl.objectID                     And ids.indexID = mpl.indexID                     And ids.partitionNumber = mpl.maxPartition;                END;                /* Update our exclusion mask for any index that has a restriction on the days it can be defragged */             UPDATE ids             SET ids.exclusionMask = ide.exclusionMask             FROM dbo.dba_indexDefragStatus AS ids             Join dbo.dba_indexDefragExclusion AS ide                 ON ids.databaseID = ide.databaseID                 And ids.objectID = ide.objectID                 And ids.indexID = ide.indexID;            END            SELECT @debugMessage = 'Looping through our list... there are ' + CAST(COUNT(*) AS VARCHAR(10)) + ' indexes to defrag!'         FROM dbo.dba_indexDefragStatus         WHERE defragDate IS Null             And page_count Between @minPageCount And IsNull(@maxPageCount, page_count);            IF @debugMode = 1 RAISERROR(@debugMessage, 0, 42) WITH NoWait;            /* Begin our loop for defragging */         WHILE (SELECT COUNT(*)                FROM dbo.dba_indexDefragStatus                WHERE (                            (@executeSQL = 1 And defragDate IS Null)                         Or (@executeSQL = 0 And defragDate IS Null And printStatus = 0)                      )                 And exclusionMask & POWER(2, DATEPART(weekday, GETDATE())-1) = 0                 And page_count Between @minPageCount And IsNull(@maxPageCount, page_count)) > 0         BEGIN                /* Check to see if we need to exit our loop because of our time limit */                    IF IsNull(@endDateTime, GETDATE()) < GETDATE()             BEGIN                 RAISERROR('Our time limit has been exceeded!', 11, 42) WITH NoWait;             END;                IF @debugMode = 1 RAISERROR('  Picking an index to beat into shape...', 0, 42) WITH NoWait;                /* Grab the index with the highest priority, based on the values submitted;                Look at the exclusion mask to ensure it can be defragged today */             SET @getIndexSQL = N'             Select Top 1                   @objectID_Out         = objectID                 , @indexID_Out          = indexID                 , @databaseID_Out       = databaseID                 , @databaseName_Out     = databaseName                 , @fragmentation_Out    = fragmentation                 , @partitionNumber_Out  = partitionNumber                 , @pageCount_Out        = page_count             From dbo.dba_indexDefragStatus             Where defragDate Is Null '                 + CASE WHEN @executeSQL = 0 THEN 'And printStatus = 0' ELSE '' END + '                 And exclusionMask & Power(2, DatePart(weekday, GetDate())-1) = 0                 And page_count Between @p_minPageCount and IsNull(@p_maxPageCount, page_count)             Order By + ' + @defragOrderColumn + ' ' + @defragSortOrder;                SET @getIndexSQL_Param = N'@objectID_Out        int OutPut                                      , @indexID_Out         int OutPut                                      , @databaseID_Out      int OutPut                                      , @databaseName_Out    nvarchar(128) OutPut                                      , @fragmentation_Out   int OutPut                                      , @partitionNumber_Out int OutPut                                      , @pageCount_Out       int OutPut                                      , @p_minPageCount      int                                      , @p_maxPageCount      int';                EXECUTE SP_EXECUTESQL @getIndexSQL                 , @getIndexSQL_Param                 , @p_minPageCount       = @minPageCount                 , @p_maxPageCount       = @maxPageCount                 , @objectID_Out         = @objectID OUTPUT                 , @indexID_Out          = @indexID OUTPUT                 , @databaseID_Out       = @databaseID OUTPUT                 , @databaseName_Out     = @databaseName OUTPUT                 , @fragmentation_Out    = @fragmentation OUTPUT                 , @partitionNumber_Out  = @partitionNumber OUTPUT                 , @pageCount_Out        = @pageCount OUTPUT;                IF @debugMode = 1 RAISERROR('  Looking up the specifics for our index...', 0, 42) WITH NoWait;                /* Look up index information */             SELECT @updateSQL = N'Update ids                 Set schemaName = QuoteName(s.name)                     , objectName = QuoteName(o.name)                     , indexName = QuoteName(i.name)                 From dbo.dba_indexDefragStatus As ids                 Inner Join ' + @databaseName + '.sys.objects As o                     On ids.objectID = o.object_id                 Inner Join ' + @databaseName + '.sys.indexes As i                     On o.object_id = i.object_id                     And ids.indexID = i.index_id                 Inner Join ' + @databaseName + '.sys.schemas As s                     On o.schema_id = s.schema_id                 Where o.object_id = ' + CAST(@objectID AS VARCHAR(10)) + '                     And i.index_id = ' + CAST(@indexID AS VARCHAR(10)) + '                     And i.type > 0                     And ids.databaseID = ' + CAST(@databaseID AS VARCHAR(10));                EXECUTE SP_EXECUTESQL @updateSQL;                /* Grab our object names */             SELECT @objectName  = objectName                 , @schemaName   = schemaName                 , @indexName    = indexName             FROM dbo.dba_indexDefragStatus             WHERE objectID = @objectID                 And indexID = @indexID                 And databaseID = @databaseID;                IF @debugMode = 1 RAISERROR('  Grabbing the partition count...', 0, 42) WITH NoWait;                /* Determine if the index is partitioned */             SELECT @partitionSQL = 'Select @partitionCount_OUT = Count(*)                                         From ' + @databaseName + '.sys.partitions                                         Where object_id = ' + CAST(@objectID AS VARCHAR(10)) + '                                             And index_id = ' + CAST(@indexID AS VARCHAR(10)) + ';'                 , @partitionSQL_Param = '@partitionCount_OUT int OutPut';                EXECUTE SP_EXECUTESQL @partitionSQL, @partitionSQL_Param, @partitionCount_OUT = @partitionCount OUTPUT;                IF @debugMode = 1 RAISERROR('  Seeing if there are any LOBs to be handled...', 0, 42) WITH NoWait;                /* Determine if the table contains LOBs */             SELECT @LOB_SQL = ' Select @containsLOB_OUT = Count(*)                                 From ' + @databaseName + '.sys.columns With (NoLock)                                 Where [object_id] = ' + CAST(@objectID AS VARCHAR(10)) + '                                    And (system_type_id In (34, 35, 99)                                             Or max_length = -1);'                                 /*  system_type_id --> 34 = image, 35 = text, 99 = ntext                                     max_length = -1 --> varbinary(max), varchar(max), nvarchar(max), xml */                     , @LOB_SQL_Param = '@containsLOB_OUT int OutPut';                EXECUTE SP_EXECUTESQL @LOB_SQL, @LOB_SQL_Param, @containsLOB_OUT = @containsLOB OUTPUT;                IF @debugMode = 1 RAISERROR('  Checking for indexes that do not allow page locks...', 0, 42) WITH NoWait;                /* Determine if page locks are allowed; for those indexes, we need to always rebuild */             SELECT @allowPageLockSQL = 'Select @allowPageLocks_OUT = Count(*)                                         From ' + @databaseName + '.sys.indexes                                         Where object_id = ' + CAST(@objectID AS VARCHAR(10)) + '                                             And index_id = ' + CAST(@indexID AS VARCHAR(10)) + '                                             And Allow_Page_Locks = 0;'                 , @allowPageLockSQL_Param = '@allowPageLocks_OUT int OutPut';                EXECUTE SP_EXECUTESQL @allowPageLockSQL, @allowPageLockSQL_Param, @allowPageLocks_OUT = @allowPageLocks OUTPUT;                IF @debugMode = 1 RAISERROR('  Building our SQL statements...', 0, 42) WITH NoWait;                /* If there's not a lot of fragmentation, or if we have a LOB, we should reorganize */             IF (@fragmentation < @rebuildThreshold Or @containsLOB >= 1 Or @partitionCount > 1)                 And @allowPageLocks = 0             BEGIN                    SET @sqlCommand = N'Alter Index ' + @indexName + N' On ' + @databaseName + N'.'                                     + @schemaName + N'.' + @objectName + N' ReOrganize';                    /* If our index is partitioned, we should always reorganize */                 IF @partitionCount > 1                     SET @sqlCommand = @sqlCommand + N' Partition = '                                     + CAST(@partitionNumber AS NVARCHAR(10));                END             /* If the index is heavily fragmented and doesn't contain any partitions or LOB's,                or if the index does not allow page locks, rebuild it */             ELSE IF (@fragmentation >= @rebuildThreshold Or @allowPageLocks <> 0)                 And IsNull(@containsLOB, 0) != 1 And @partitionCount <= 1             BEGIN                    /* Set online rebuild options; requires Enterprise Edition */                 IF @onlineRebuild = 1 And @editionCheck = 1                     SET @rebuildCommand = N' Rebuild With (Online = On';                 ELSE                     SET @rebuildCommand = N' Rebuild With (Online = Off';                    /* Set sort operation preferences */                 IF @sortInTempDB = 1                     SET @rebuildCommand = @rebuildCommand + N', Sort_In_TempDB = On';                 ELSE                     SET @rebuildCommand = @rebuildCommand + N', Sort_In_TempDB = Off';                    /* Set processor restriction options; requires Enterprise Edition */                 IF @maxDopRestriction IS Not Null And @editionCheck = 1                     SET @rebuildCommand = @rebuildCommand + N', MaxDop = ' + CAST(@maxDopRestriction AS VARCHAR(2)) + N')';                 ELSE                     SET @rebuildCommand = @rebuildCommand + N')';                    SET @sqlCommand = N'Alter Index ' + @indexName + N' On ' + @databaseName + N'.'                                 + @schemaName + N'.' + @objectName + @rebuildCommand;                END             ELSE                 /* Print an error message if any indexes happen to not meet the criteria above */                 IF @printCommands = 1 Or @debugMode = 1                     RAISERROR('We are unable to defrag this index.', 0, 42) WITH NoWait;                /* Are we executing the SQL?  If so, do it */             IF @executeSQL = 1             BEGIN                    SET @debugMessage = 'Executing: ' + @sqlCommand;                    /* Print the commands we're executing if specified to do so */                 IF @printCommands = 1 Or @debugMode = 1                     RAISERROR(@debugMessage, 0, 42) WITH NoWait;                    /* Grab the time for logging purposes */                 SET @dateTimeStart  = GETDATE();                    /* Log our actions */                 INSERT INTO dbo.dba_indexDefragLog                 (                       databaseID                     , databaseName                     , objectID                     , objectName                     , indexID                     , indexName                     , partitionNumber                     , fragmentation                     , page_count                     , dateTimeStart                     , sqlStatement                 )                 SELECT                       @databaseID                     , @databaseName                     , @objectID                     , @objectName                     , @indexID                     , @indexName                     , @partitionNumber                     , @fragmentation                     , @pageCount                     , @dateTimeStart                     , @sqlCommand;                    SET @indexDefrag_id = SCOPE_IDENTITY();                    /* Wrap our execution attempt in a try/catch and log any errors that occur */                 BEGIN Try                        /* Execute our defrag! */                     EXECUTE SP_EXECUTESQL @sqlCommand;                     SET @dateTimeEnd = GETDATE();                        /* Update our log with our completion time */                     UPDATE dbo.dba_indexDefragLog                     SET dateTimeEnd = @dateTimeEnd                         , durationSeconds = DATEDIFF(SECOND, @dateTimeStart, @dateTimeEnd)                     WHERE indexDefrag_id = @indexDefrag_id;                    END Try                 BEGIN Catch                        /* Update our log with our error message */                     UPDATE dbo.dba_indexDefragLog                     SET dateTimeEnd = GETDATE()                         , durationSeconds = -1                         , errorMessage = Error_Message()                     WHERE indexDefrag_id = @indexDefrag_id;                        IF @debugMode = 1                         RAISERROR('  An error has occurred executing this command! Please review the dba_indexDefragLog table for details.'                             , 0, 42) WITH NoWait;                    END Catch                    /* Just a little breather for the server */                 WAITFOR Delay @defragDelay;                    UPDATE dbo.dba_indexDefragStatus                 SET defragDate = GETDATE()                     , printStatus = 1                 WHERE databaseID       = @databaseID                   And objectID         = @objectID                   And indexID          = @indexID                   And partitionNumber  = @partitionNumber;                END             ELSE             /* Looks like we're not executing, just printing the commands */             BEGIN                 IF @debugMode = 1 RAISERROR('  Printing SQL statements...', 0, 42) WITH NoWait;                    IF @printCommands = 1 Or @debugMode = 1                     PRINT IsNull(@sqlCommand, 'error!');                    UPDATE dbo.dba_indexDefragStatus                 SET printStatus = 1                 WHERE databaseID       = @databaseID                   And objectID         = @objectID                   And indexID          = @indexID                   And partitionNumber  = @partitionNumber;             END            END            /* Do we want to output our fragmentation results? */         IF @printFragmentation = 1         BEGIN                IF @debugMode = 1 RAISERROR('  Displaying a summary of our action...', 0, 42) WITH NoWait;                SELECT databaseID                 , databaseName                 , objectID                 , objectName                 , indexID                 , indexName                 , partitionNumber                 , fragmentation                 , page_count                 , range_scan_count             FROM dbo.dba_indexDefragStatus             WHERE defragDate >= @startDateTime             ORDER BY defragDate;            END;        END Try     BEGIN Catch            SET @debugMessage = Error_Message() + ' (Line Number: ' + CAST(Error_Line() AS VARCHAR(10)) + ')';         PRINT @debugMessage;        END Catch;        /* When everything is said and done, make sure to get rid of our temp table */     DROP TABLE #databaseList;     DROP TABLE #processor;     DROP TABLE #maxPartitionList;        IF @debugMode = 1 RAISERROR('DONE!  Thank you for taking care of your indexes!  :)', 0, 42) WITH NoWait;        SET NOCOUNT OFF;     RETURN 0 END

4. 사용법

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Exec dbo.dba_indexDefrag_sp              @executeSQL           = 0            , @printCommands        = 1            , @DATABASE             ='search'            --, @tableName            =            , @debugMode            = 1            , @printFragmentation   = 1            , @forceRescan          = 1            , @maxDopRestriction    = 1            , @minPageCount         = 8            , @maxPageCount         = Null            , @minFragmentation     = 1            , @rebuildThreshold     = 30            , @defragDelay          = '00:00:05'            , @defragOrderColumn    = 'page_count'            , @defragSortOrder      = 'DESC'            , @excludeMaxPartition  = 1            , @timeLimit            = Null;