Enhanced Index Rebuild Script
This script is being offered for public use and as such is being offered as untested and unverified. Please use this script at your own risk, as I take NO responsibility for it's use elsewhere in environments that are NOT under my control.
Redistribution or sale of dba_indexDefrag_sp, in whole or in part, is prohibited.
Always ensure that you run such scripts in TEST prior to production and perform due diligence as to whether they meet yours, or your company needs!
This procedure is an enhanced version of the well known procedure originally written by Michelle Ufford and has been altered by me over the years to better suit my needs and to take new functionality within new releases into account.
It can be run using the following SQL Agent job definitions below... (please note these are just examples and may not fit your needs, so please change accordingly to your requirements and environments and SQL versions) ...
####################################################################################################### EXAMPLE SQL Agent job definition for running this procedure ####################################################################################################### Example SQL Agent Job Step 1 with no databases to ignore
---------------------------------------------------------------------------------
SET ARITHABORT ON ; SET QUOTED_IDENTIFIER ON ; SET ARITHABORT ON ; SET QUOTED_IDENTIFIER ON ;
Exec ..dba_indexDefrag_sp
@executeSQL = 1 --0 = do it otherwise just analyse it , @printCommands = 1 ,
@debugMode = 1 ,
@printFragmentation = 1 ,
@forceRescan = 1 ,
@scanMode = 'DETAILED' -- "LIMITED", "SAMPLED" or "DETAILED" ,
@maxDopRestriction = 1 ,
@minPageCount = 100 ,
@database = NULL, -- if a valid database name ('databasename'), will only process that database
if @ignoredatabases is spaces
@ignoredatabases = '' -- if not spaces, will ignore the databases in this list if the @database parameter is NULL ,
@maxPageCount = Null ,
@sortInTempDB = 1 -- much more effecient to sort in TEMPDB if on faster disks ,
@minFragmentation = 5 ,
@rebuildThreshold = 15 , @defragDelay = '00:00:05' , @defragOrderColumn = 'fragmentation' ,
@defragSortOrder = 'DESC' ,
@excludeMaxPartition = 1 ,
@timeLimit = 360 -- 6 hours. ,
@onlineRebuild = 0; -- 1 = online rebuild; 0 = offline rebuild; only in Enterprise 16-12-2013
---------------------------------------------------------------------------------
EXAMPLE SQL Agent Job Step 1 with databaes to ignore
---------------------------------------------------------------------------------
SET ARITHABORT ON ; SET QUOTED_IDENTIFIER ON ; Exec ..dba_indexDefrag_sp
@executeSQL = 1 --0 = do it otherwise just analyse it , @printCommands = 1 ,
@debugMode = 1 ,
@printFragmentation = 1 ,
@forceRescan = 1 ,
@scanMode = 'LIMITED' ,
@database = NULL ,
@ignoredatabases = 'ReportServer,ReportServerTempDB' , @maxDopRestriction = 1 ,
@minPageCount = 1000 ,
@maxPageCount = Null ,
@sortInTempDB = 1 -- much more effecient to sort in TEMPDB if on faster disks ,
@minFragmentation = 1 ,
@rebuildThreshold = 5.0 ,
@defragDelay = '00:00:05' ,
@defragOrderColumn = 'page_count' ,
@defragSortOrder = 'DESC' ,
@excludeMaxPartition = 1 ,
@timeLimit = 240 -- 4 hours. ,
@onlineRebuild = 0; -- 1 = online rebuild; 0 = offline rebuild; only in Enterprise , @comp = 'N' -- N or D or R or C or CA specifies the level of data compression, if any, for the indexes during the rebuilds
--############################################################################################################################
--
-- This script is being offered for public use and as such is being offered as untested and unverified.
-- Please use this script at your own risk, as I take NO responsibility for it's use elsewhere in environments
-- that are NOT under my control.
-- Redistribution or sale of dba_indexDefrag_sp, in whole or in part, is prohibited.
--
-- Always ensure that you run such scripts in test prior to production and perform due diligence as to whether they meet yours,
-- or your company needs!
--
--############################################################################################################################
USE [your admin database here]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--#######################################################################################################
--
-- Date: 28/09/2011
-- DBA: Haden Kingsland
-- Description: To rebuild/re-organise all indexes dependant upon a fragmentation level of < or > a given
-- percentage, passed in as a parameter at runtime.
--
--Name: dba_indexDefrag_sp
--
-- Acknowledgements:
--------------------
--
-- This script has been taken from the original written by Michelle Ufford from http://sqlfool.com. I have
-- simply enhanced it to better suit my purposes.
--
--#######################################################################################################
-- input parameters...
--
create PROCEDURE [your admin schema here].[dba_indexDefrag_sp]
/* Declare Parameters */ @minFragmentation FLOAT = 10.0
/* in percent, will not defrag if fragmentation less than specified */ , @rebuildThreshold FLOAT --= 30.0 -- defaulted to 10%, but will be overwritten by parameter passed in
/* in percent, greater than @rebuildThreshold will result in rebuild instead of reorg */ , @executeSQL BIT = 1 /* 1 = execute; 0 = print command only */ , @defragOrderColumn NVARCHAR(20) = 'fragmentation'
/* Valid options are: range_scan_count, fragmentation, page_count */ , @defragSortOrder NVARCHAR(4) = 'DESC'
/* Valid options are: ASC, DESC */ , @timeLimit INT -- = 240 /* defaulted to 4 hours */ /* Optional time limitation; expressed in minutes */ , @DATABASE VARCHAR(128) = Null
/* Option to specify a database name; null will return all */, @ignoredatabasesvarchar(400) = '' -- spaces or a list of databases to ignore from the rebuild process
, @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 --= 0
/* 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 */ ,@compVARCHAR(2)= N
AS
/*##############################################################################################################
Notes:
CAUTION: TRANSACTION LOG SIZE SHOULD BE MONITORED CLOSELY WHEN DEFRAGMENTING.
DO NOT RUN UNATTENDED ON LARGE DATABASES DURING BUSINESS HOURS.
@minFragmentation defaulted to 1%, 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.
@ignoredatabasesTo allow one or more databases to be ignored from the index rebuild process
1) To return all databases, the @database parameter MUST BE NULL,
and the @ignoredatabases MUST BE SPACES.
2) To ignore a given database(s), the @database parameter MUST BE NULL, and
the @ignoredatabases MUST NOT BE SPACES. It must contain either a single 'dbname' .
or a list of names, thus... 'db1,db2,db3'. This will ignore these databases from the run.
3) To process only a single database, the @database parameter MUST NOT BE NULL and the
@ignoredatabases MUST BE SPACES.
Example values for these parameters...
set @database = 'PMDB'
or
set @database = NULL
set @ignoredatabases = ''
or
set @ignoredatabases = 'DB1,DB2'
@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
@compLevel of compression to use during the index rebuilds
'R'= ROW / 'P' = PAGE / 'C' = COLUMNSTORE / 'CA' = COLUMNSTORE_ARCHIVE / anything else = NONE! (also the default)
Called by: SQL Agent Job or DBA
----------------------------------------------------------------------------
Date InitialsVersion 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
28/09/2011HJK5.0Enhanced SQL Server Version check, to see if it is
Developer, Standard or Enterprise.
11/10/2011HJK5.1Enhanced the script to allow indexes with LOB's to be
rebuilt offline rather than just re-organised. Also to
allow indexes with multiple partitions to be re-organised
or rebuilt with partition=ALL.
28/02/2012HJK5.2To allow one or more databases to be ignored from the index rebuild process
1) To return all databases, the @database parameter MUST BE NULL,
and the @ignoredatabases MUST BE SPACES.
2) To ignore a given database(s), the @database parameter MUST BE NULL, and
the @ignoredatabases MUST NOT BE SPACES. It must contain either a single 'dbname' .
or a list of names, thus... 'db1,db2,db3'. This will ignore these databases from the run.
3) To process only a single database, the @database parameter MUST NOT BE NULL and the
@ignoredatabases MUST BE SPACES.
Example values for these parameters...
set @database = 'PMDB'
or
set @database = NULL
set @ignoredatabases = ''
or
set @ignoredatabases = 'BESMgmt,CFS'
01/02/2012HJK6.0Enhanced error trapping, to catch certain errors and
force a re-organisation over a rebuild when these
errors are trapped.
21/11/2012HJK6.1Further enhanced to cater for new capabilities in
SQL Server 2012, as LOBs can be rebuilt online. The
caveat to this being that the "text, ntext and image"
data types are not supported, as these are on the deprication
path for forthcoming releases.
18/12/2013HJK7.0LOB check enhancements to correct issue with the @ver variable!
10/07/2014HJK7.1Added the data compression rebuild option with the new SQL 2014 options!
DATA_COMPRESSION = { NONE | ROW | PAGE | COLUMNSTORE | COLUMNSTORE_ARCHIVE
25/01/2016HJK7.2Added SQL 2014 enhancements to allow for partitions to be re-built
online for Enterprise version.
http://blogs.msdn.com/b/sqlgardner/archive/2015/02/02/index-rebuild-enhancements-with-newer-sql-versions.aspx
--#######################################################################################################
SQL Agent job definition for running this procedure
--#######################################################################################################
Example SQL Agent Job Step 1
-----------------------------
SET ARITHABORT ON ;
SET QUOTED_IDENTIFIER ON ;
SET ARITHABORT ON ;
SET QUOTED_IDENTIFIER ON ;
Exec <your database>.<your schema>.dba_indexDefrag_sp
@executeSQL = 1 --0 = do it otherwise just analyse it
, @printCommands = 1
, @debugMode = 1
, @printFragmentation = 1
, @forceRescan = 1
, @scanMode= 'DETAILED' -- "LIMITED", "SAMPLED" or "DETAILED"
, @maxDopRestriction = 1
, @minPageCount = 100
, @database= NULL -- if a valid database name ('databasename'), will only process that databaseif @ignoredatabases is spaces
, @ignoredatabases = '' -- if not spaces, will ignore the databases in this list if the @database parameter is NULL
, @maxPageCount = Null
, @sortInTempDB= 1 -- much more effecient to sort in TEMPDB if on faster disks
, @minFragmentation = 5
, @rebuildThreshold = 15
, @defragDelay = '00:00:05'
, @defragOrderColumn = 'fragmentation'
, @defragSortOrder = 'DESC'
, @excludeMaxPartition = 1
, @timeLimit = 360 -- 6 hours.
, @onlineRebuild = 0; -- 1 = online rebuild; 0 = offline rebuild; only in Enterprise
-- 16-12-2013
Example SQL Agent Job Step 1 with @ignoredatabases parameter specified!!!!
---------------------------------------------------------------------------
SET ARITHABORT ON ;
SET QUOTED_IDENTIFIER ON ;
Exec <your database>.<your schema>.dba_indexDefrag_sp
@executeSQL = 1 --0 = do it otherwise just analyse it
, @printCommands = 1
, @debugMode = 1
, @printFragmentation = 1
, @forceRescan = 1
, @scanMode= 'LIMITED'
, @database= NULL
, @ignoredatabases= 'ReportServer,ReportServerTempDB'
, @maxDopRestriction = 1
, @minPageCount = 1000
, @maxPageCount = Null
, @sortInTempDB= 1 -- much more effecient to sort in TEMPDB if on faster disks
, @minFragmentation = 1
, @rebuildThreshold = 5.0
, @defragDelay = '00:00:05'
, @defragOrderColumn = 'page_count'
, @defragSortOrder = 'DESC'
, @excludeMaxPartition = 1
, @timeLimit = 240 -- 4 hours.
, @onlineRebuild = 0; -- 1 = online rebuild; 0 = offline rebuild; only in Enterprise
, @comp= 'N' -- N or D or R or C or CA specifies the level of data compression, if any, for the indexes
-- during the rebuilds
#########################################################################################################
This step is required to recalculate all optimizer statistics after the index rebuild job has completed.
---------------------------------------------------------------------------------------------------------
SQL Agent Job Step 2
--------------------
Also to be run in conjunction with a statistics update job step, in the context
of the "MASTER" database, thus...
DECLARE @SQL VARCHAR(1000)
DECLARE @DB sysname
DECLARE database_cursor CURSOR FORWARD_ONLY STATIC FOR
SELECT [name]
FROM master.sys.databases
where database_id not in (1,2,3,4) -- ignore system databases
and ([name] NOT like '%ReportS%' -- ignore reportserver databases
and name not like '%DBA%') -- ignore the DBA specific databases
and is_read_only != 1 -- database is NOT READ ONLY
and state = 0 -- online databases only!
ORDER BY [name]
OPEN database_cursor
FETCH NEXT FROM database_cursor INTO @DB
WHILE @@FETCH_STATUS = 0
BEGIN
SELECT @SQL = 'USE [' + @DB +']' + CHAR(13) + 'EXEC sp_updatestats' + CHAR(13)
PRINT @SQL
exec (@sql)
FETCH NEXT FROM database_cursor INTO @DB
END
CLOSE database_cursor
DEALLOCATE database_cursor
#######################################################################################################
---------------------------------------------------------------------------------
You will need the below tables to exist within the DBAdmin database in order
to record the status of the index process
---------------------------------------------------------------------------------
Create table [dbo].[dba_indexDefragExclusion]
###########################################
USE [DBAdmin]
GO
SET QUOTED_IDENTIFIER ON
GO
print 'creating CREATE TABLE [dbo].[dba_indexDefragExclusion]'
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,
CONSTRAINT [PK_indexDefragExclusion_v40] PRIMARY KEY CLUSTERED
(
[databaseID] ASC,
[objectID] ASC,
[indexID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [DATA]
) ON [DATA]
GO
---
USE [DBAdmin]
GO
Create table [dbo].[dba_indexDefragLog]
--###########################################
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
print 'CREATE TABLE [dbo].[dba_indexDefragLog]'
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] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [DATA]
) ON [DATA]
SET ANSI_PADDING OFF
GO
-----
USE [DBAdmin]
GO
Create table [dbo].[dba_indexDefragStatus]
###########################################
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
print 'CREATE TABLE [dbo].[dba_indexDefragStatus]'
CREATE TABLE [dbo].[dba_indexDefragStatus](
[databaseID] [int] NOT NULL,
[databaseName] [nvarchar](128) NULL,
[objectID] [int] NOT NULL,
[indexID] [int] NOT NULL,
[partitionNumber] [smallint] NOT NULL,
[fragmentation] [float] NULL,
[page_count] [int] NULL,
[range_scan_count] [bigint] NULL,
[schemaName] [nvarchar](128) NULL,
[objectName] [nvarchar](128) NULL,
[indexName] [nvarchar](128) NULL,
[scanDate] [datetime] NULL,
[defragDate] [datetime] NULL,
[printStatus] [bit] NULL,
[exclusionMask] [int] NULL,
CONSTRAINT [PK_indexDefragStatus_v40] PRIMARY KEY CLUSTERED
(
[databaseID] ASC,
[objectID] ASC,
[indexID] ASC,
[partitionNumber] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [DATA]
) ON [DATA]
GO
ALTER TABLE [dbo].[dba_indexDefragStatus] ADD CONSTRAINT [DF__dba_index__print__5BAD9CC8] DEFAULT ((0)) FOR [printStatus]
ALTER TABLE [dbo].[dba_indexDefragStatus] ADD CONSTRAINT [DF__dba_index__exclu__5CA1C101] DEFAULT ((0)) FOR [exclusionMask]
GO
-----
USE [DBAdmin]
GO
Create table [dbo].[dba_indexDefragStatus_Archive]
#################################################
SET QUOTED_IDENTIFIER ON
GO
print 'CREATE TABLE [dbo].[dba_indexDefragStatus_Archive]'
CREATE TABLE [dbo].[dba_indexDefragStatus_Archive](
[databaseID] [int] NOT NULL,
[databaseName] [nvarchar](128) NULL,
[objectID] [int] NOT NULL,
[indexID] [int] NOT NULL,
[partitionNumber] [smallint] NOT NULL,
[fragmentation] [float] NULL,
[page_count] [int] NULL,
[range_scan_count] [bigint] NULL,
[schemaName] [nvarchar](128) NULL,
[objectName] [nvarchar](128) NULL,
[indexName] [nvarchar](128) NULL,
[scanDate] [datetime] NOT NULL,
[defragDate] [datetime] NULL,
[printStatus] [bit] NULL,
[exclusionMask] [int] NULL,
CONSTRAINT [PK_indexDefragStatus_Archive_v40] PRIMARY KEY CLUSTERED
(
[databaseID] ASC,
[objectID] ASC,
[indexID] ASC,
[partitionNumber] ASC,
[scanDate] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [DATA]
) ON [DATA]
GO
###########################################################################################################*/
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 = 1.0;
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)
, @statsnvarchar(4000)
, @levelvarchar(2)
, @compressionvarchar(20)
, @ERR_MESSAGEvarchar(300)
, @vervarchar(15)
, @ERR_NUMint;
-- Initialize our variables
SELECT @startDateTime = GETDATE()
, @endDateTime = DATEADD(MINUTE, @timeLimit, GETDATE());
-- get SQL Server release as this reflects what can and cannot be rebuilt online.
SELECT @ver = CASE WHEN @@VERSION LIKE '%8.0%'THEN 'SQL2000'
WHEN @@VERSION LIKE '%9.0%'THEN 'SQL2005'
WHEN @@VERSION LIKE '%10.0%' THEN 'SQL2008'
WHEN @@VERSION LIKE '%10.5%' THEN 'SQL2008R2'
WHEN @@VERSION LIKE '%11.0%' THEN 'SQL2012'
WHEN @@VERSION LIKE '%12.0%' THEN 'SQL 2014'
END;
-- 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;
-- 28/09/2011 -- Enhanced SQL Server Version check, to see if it is Developer, Standard or Enterprise.
SELECT @level =CASE
WHEN convert(varchar(30),serverproperty('Edition')) LIKE '%Enterprise%'THEN 'EE'
WHEN convert(varchar(30),serverproperty('Edition')) LIKE '%Developer%'THEN 'DE'
WHEN convert(varchar(30),serverproperty('Edition')) LIKE '%Standard%'THEN 'SE'
WHEN convert(varchar(30),serverproperty('Edition')) LIKE '%Web%'THEN 'WE'
WHEN convert(varchar(30),serverproperty('Edition')) LIKE '%Express%'THEN 'EX'
WHEN convert(varchar(30),serverproperty('Edition')) LIKE '%Business%'THEN 'BI'
ELSE 'UNKNOWN'
END;
--
-- set the level of data compression based upon passed in values
--
SELECT @compression = CASE
WHEN @comp = 'R'THEN 'ROW'
WHEN @comp = 'P'THEN 'PAGE'
WHEN @comp = 'C'THEN 'COLUMNSTORE'
WHEN @comp = 'CA'THEN 'COLUMNSTORE_ARCHIVE'
ELSE 'NONE'
END;
IF @level = 'EE'
or @level = 'DE'
begin
SET @editionCheck = 1 -- supports online rebuilds
END
ELSE
BEGIN
SET @editionCheck = 0; -- does not support online rebuilds
END
/* 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 dbadmin.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.
Your data compression mode is...' + @compression +
'You are choosing to ignore the following databases... ' + ISNULL(@ignoredatabases,'NONE')
RAISERROR(@debugMessage, 0, 42) WITH NoWait;
END;
IF @debugMode = 1 RAISERROR('Grabbing a list of our databases...', 0, 42) WITH NoWait;
-- Initialize the @ignoredatabases parameter if passed in with a value to ensure a comma at the start and end.
-- This is required to allow the CHARINDEX function to work correctly in the statement that follows.
IF @ignoredatabases <> ''
BEGIN
SET @ignoredatabases = ',' + @ignoredatabases + ','
END;
-- 16-12-2013
/* Retrieve the list of databases to investigate. If @DATABASE is NULL, all databases will be returned */ 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', 'msdb','model')-- exclude system databases
And [STATE] = 0 -- state must be ONLINE
And is_read_only = 0 -- cannot be read_only
-- 16-12-2013
-- check whether databases are in the list of those passed in to allow
-- for databases to be ignored or a single database to be processed
and not (CHARINDEX(',' + name + ',' , @ignoredatabases) > 0))
/* Check to see if we have indexes in need of defrag; otherwise, re-scan the database(s) */ IF Not Exists(SELECT TOP 1 * FROM dbadmin.dbo.dba_indexDefragStatus WHERE defragDate IS Null)
Or @forceRescan = 1
BEGIN
/* Truncate our list of indexes to prepare for a new scan */ TRUNCATE TABLE dbadmin.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 [DBAdmin].[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 dbadmin.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 dbadmin.dbo.dba_indexDefragStatus AS ids
Join dbadmin.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 dbadmin.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 dbadmin.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 dbadmin.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 dbadmin.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 dbadmin.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;
-- Version 6.1 enhancements
--
/* Determine if the table contains LOBs */ SELECT @LOB_SQL = N' Select @containsLOB_OUT = Count(*) From '
+ @databaseName
+ '.sys.columns With (NoLock) Where [object_id] = '
+ CAST(@objectID AS VARCHAR(10))
-- mark as containing LOB's if the column has a LOB data type and the database is NOT 2012 as no LOB's can be built online!
-- or mark as containing LOB's if an image, text or ntext data type and using SQL 2012 as these cannot be built online under 2012 :)
+ ' and ((system_type_id In (34, 35, 99) or max_length = -1) and '
+ '''' + @ver + '''' + ' != ''SQL2012'') or (system_type_id in (34, 35, 99) and '
+ '''' + @ver + '''' + ' = ''SQL2012'');',
@LOB_SQL_Param = N'@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 = N'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 = N'@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;
-- Version 5.1 enhancements
---------------------------------------------------------------------------------------------------------------------------------
-- If there's NOT a lot of fragmentation we should reorganize
-- This is regardless of SQL Version. This is also regardless of whether there are LOB's or not,
-- as a re-organise will take care of LOB objects.
---------------------------------------------------------------------------------------------------------------------------------
IF (@fragmentation < @rebuildThreshold)
BEGIN
SET @sqlCommand = N'Alter Index ' + @indexName + N' On ' + @databaseName + N'.'
+ @schemaName + N'.' + @objectName + N' ReOrganize';
-- If the index is partitioned, we should
IF @partitionCount > 1
BEGIN
IF @ver != 'SQL 2014'
BEGIN
set @sqlCommand = @sqlCommand + N' PARTITION = ALL'
END
ELSE
BEGIN
SET @sqlCommand = @sqlCommand + N' Partition = ' + RTRIM(LTRIM(CAST(@partitionNumber AS NVARCHAR(5))));
END
END
END
-- REBUILD section
---------------------------------------------------------------------------------------------------------------------------------
-- If the index is heavily fragmented or if the index does not allow page locks, then rebuild it...
---------------------------------------------------------------------------------------------------------------------------------
ELSE IF (@fragmentation >= @rebuildThreshold
or @allowPageLocks <> 0)
BEGIN
---------------------------------------------------------------------------------------------------------------------------------
-- If you are running EE, and there are no LOB's and there is less than 1 partition, then you can rebuild online...
-- OR... if you are running SQL 2014 and the partition count > 1 and the version is EE you can also rebuild online
---------------------------------------------------------------------------------------------------------------------------------
IF ((@onlineRebuild = 1 -- user set option to rebuild online
and @editionCheck = 1) -- can only happen if editioncheck = 1 as this is Enterprise Edition
and IsNull(@containsLOB, 0) < 1 -- and there can be no LOB's to rebuild online
and @partitionCount <= 1
)
or (
@partitionCount > 1-- you can rebuild individual partitions online with SQL 2014 Enterprise Edition
and @ver = 'SQL 2014'
and @editionCheck = 1-- can only happen if editioncheck = 1 as this is Enterprise Edition
and @onlineRebuild = 1-- user set option to rebuild online
)
SET @rebuildCommand = N' Rebuild With (Online = On';
---------------------------------------------------------------------------------------------------------------------------------
-- ...otherwise, if there are LOB's regardless of SQL version, or if there is more than 1 partition (you cannot rebuild multiple
-- partitions online), or if we are running Standard Edition, then you can only rebuild offline...
---------------------------------------------------------------------------------------------------------------------------------
-- Updated for SQL Server 2014 as you can now rebuild paritions online in this version
---------------------------------------------------------------------------------------------------------------------------------
ELSE
IF (@partitionCount > 1
and @ver = '2014'-- can rebuild partitions online in SQL Server 2014
and @onlineRebuild = 1-- user set option to rebuild online must be set!
and @editionCheck = 1)-- Enterprise Edition only!
and IsNull(@containsLOB, 0) < 1 -- no lobs -- worked out earlier in the procedure to allow 2012/2014 options
BEGIN
SET @rebuildCommand = N' Rebuild PARTITION = ALL With (Online = On';
END
ELSE IF @partitionCount > 1 -- regardless of SQL version (STD or EE)
and @ver != '2014'-- cannot rebuild paritions online prior to SQL 2014
and IsNull(@containsLOB, 0) < 1 -- no lobs
BEGIN
SET @rebuildCommand = N' Rebuild PARTITION = ALL With (Online = Off';
END
ELSE -- partitioncount <= 1 regardless of version
BEGIN
SET @rebuildCommand = N' Rebuild With (Online = Off';
END
-- always make sure that we rebuild all new indexes with a fill factor of 80%, as this helps to reduce page splits and
-- ultimately fragmentation
SET @rebuildCommand = @rebuildCommand + N', PAD_INDEX = ON, FILLFACTOR = 80, STATISTICS_NORECOMPUTE = 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';
-- Add the data compression to the end of the rebuild statement, whether required or not!!!!
-- DATA_COMPRESSION = { NONE | ROW | PAGE | COLUMNSTORE | COLUMNSTORE_ARCHIVE
set @rebuildCommand = @rebuildCommand + N', DATA_COMPRESSION = ' + @compression;
/* 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
BEGIN
RAISERROR('We are unable to defrag this index.', 0, 42) WITH NoWait;
END
/* 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 [DBAdmin].[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();
select * from [DBAdmin].[dbo].[dba_indexDefragLog]
--exec sp_help '[dbo].[dba_indexDefragLog]'
/* 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 dbadmin.dbo.dba_indexDefragLog
SET dateTimeEnd = @dateTimeEnd
, durationSeconds = DATEDIFF(SECOND, @dateTimeStart, @dateTimeEnd)
WHERE indexDefrag_id = @indexDefrag_id;
END Try
BEGIN Catch
SELECT @ERR_MESSAGE = ERROR_MESSAGE(), @ERR_NUM = ERROR_NUMBER();
--
-- Version 6.0 -- 01/02/2012
--
---------------------------------------------------------------------------------------------------------------------------------
-- If one of the following error codes are thrown, then perform an index re-organize rather than a rebuild.
-- Codes can be obtained from sys.sysmessages.
-- 2725 -- An online operation cannot be performed because the index contains column of data type text, ntext, image, varchar(max),
-- nvarchar(max), varbinary(max), xml, or large CLR type. For a non-clustered index, the column could be an in
-- 1105 --Could not allocate space for object in database because the filegroup is full. Create disk space by deleting unneeded files,
--dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on
-- 1101 -- Could not allocate a new page for database because of insufficient disk space in filegroup. Create the necessary
-- space by dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files.
---------------------------------------------------------------------------------------------------------------------------------
IF @ERR_NUM in (2725,1101,1105)
BEGIN
SET @sqlCommand = N'Alter Index ' + @indexName + N' On ' + @databaseName + N'.'
+ @schemaName + N'.' + @objectName + N' ReOrganize';
IF @partitionCount > 1
set @sqlCommand = @sqlCommand + N' PARTITION = ALL'
/* Execute our defrag! */EXECUTE SP_EXECUTESQL @sqlCommand;
SET @dateTimeEnd = GETDATE();
/* Update our log with our completion time */UPDATE dbadmin.dbo.dba_indexDefragLog
SET dateTimeEnd = @dateTimeEnd
, durationSeconds = DATEDIFF(SECOND, @dateTimeStart, @dateTimeEnd)
WHERE indexDefrag_id = @indexDefrag_id;
END
ELSE
BEGIN
IF @ERR_NUM NOT IN (2725,1101,1105)
BEGIN
/* Update our log with our error message */UPDATE dbadmin.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
END
END Catch
/* Just a little breather for the server */ WAITFOR Delay @defragDelay;
UPDATE dbadmin.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 dbadmin.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 dbadmin.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(30)) + ')';
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('ALL COMPLETED! Your indexes are now a lot better than before!!!! :)', 0, 42) WITH NoWait;
SET NOCOUNT OFF;
RETURN 0
END 
