” Select the vault database(s). INDEX index-name Specifies the index to use when reorganizing the table. Microsoft recommends Index Rebuild operation to defrag indexes if the fragmentation level of your index is greater. Reorganizing an index is always an online operation, and it can be stopped at any time. Microsoft recommends Index Rebuild operation to defrag indexes if the fragmentation level of your index is greater. Applies to: SQL Server. In my last tip, Index Fragmentation Report in SQL Server 2005 & 2008, I discussed what fragmentation is, its different types, its performance impact and what are different methods available in SQL Server 2005 and 2008 to identify fragmentation levels. The reason given is that the indexes and statistics are partly based on available CPU and memory resources. In the New Maintenance Plan dialog box, in the Name box, type a name for the plan and select OK. I'm just using the reorg index task that is in the maintenance plan designer GUI. The algorithm to build an index from scratch is different to that which maintains it as data arrives so these non-clustered indexes will be unfragmented too. m. Then, drag and drop Rebuild Index Task into the maintenance plan designer. Method 1: Create a SQL Server Agent job to rebuild indexes and update statistics. 2. ) Reorganize = fragmentation level is between 5% and 30%. In this article. we have 5 databases in our instance, in that 2 databases are online and remaining are in offline. DROP INDEX when you are dropping a clustered index offline without specifying the MOVE TO clause and nonclustered indexes do not exist. Full-Text Engine. We are using clustered columnstore index in SqlServer 2016 for 400M rows. در این مقاله روش بهینه سازی ایندکسها با استفاده از reorganize و rebuild کردن ایندکس تکه تکه شده (Fragmented Index) با استفاده از محیط SQL Server Management Studio و Transact-SQL شرح داده خواهد شد. May 5, 2010 at 8:00 am. The Reorganize Index task also includes an option to compact large object data. REORG INDEXES/INDEXES command reorganizes indexes. So now once you have identified the high fragmentation level in your database, which could. However I want advice whether it is required to setup the SQL Server Index and Statistics Maintenance scripts, because my SQL server is running on a SAN infrastructure and I have read that there is no benefit to setting fill-factor to less than 100%, or to perform index. Reorganizing an index uses minimal system resources and is an online operation. @OnlyModifiedStatistics = 'Y'. When you rebuild, SQL creates a new fresh index. ) Index Size is greater than 5 MB's. Reorganizing an Index should be done when you have elevated amounts of white space within your index (i. These are two different modes to remove index fragmentation. Inadequate disk space can degrade performance or even cause the index operation to fail. Disk space is an important consideration when you create, rebuild, or drop indexes. H. #1637994. This is how records are made unique in the context of a clustered index. Use the online version of the Rebuild Index task ; Use the Reorganize Index task followed by the Update Statistics task; If you have the Enterprise Edition of SQL Server, the Maintenance Plan Wizard offers a Keep index online while reindexing option, which means that the index will continue to be available to users even while it is being. HeapTest ( Id INT not NULL Default (1), Col1 char (5000) Not null Default ('Heaps Are Cool') ) SET NOCOUNT ON Insert into dbo. My predecessor created a Maintenance Plan with 4 tasks: CHECKDB; SHRINKDATABASE (N'DB1',10,TRUNCATEONLY); it seems to be running a REORGANIZE on all Indexes for all Tables and Views and "Compact Large Objects" is checked; and then it UPDATE. Also, in earlier versions the granularity of control was less refined. Ignore anything with less than 15-20 pages. SQL Server index fragmentation is unavoidable, but you can minimize the negative effects of fragmentation on database performance. Scale back down once the index rebuild is complete. The procedure uses SQL Server ALTER INDEX command, with the REORGANIZE option NULL. We have decided to use the following code to compute a fragmentation % for each full-text index. A more intelligent way is to check fragmentation first then rebuild or reorganise. Since you can have multiple columns in a table, here are a few considerations for index key columns. It reorgs indexes when fragmentation is below 30% else it rebuild the index. You can do maintenance in phases, where each maintenance phase covers a subset of. This article introduces the concept of fragmentation and discusses two ways of managing index fragmentation - reorganizing and rebuilding. Rebuild the Indexes if the Fragmentation level is > 30%. 1. If you what you are saying is true, even reorganizing the indexes that have never been, may cause a larger impact on the server as well. The “Reorganize” index option is more facilitated than the “Rebuilt” index. Doing so will: Eliminate all data in the deltastore. Index Fragmentation and out of date statistics! Don't forget stats, it's one of the most important factors in SQL Server deciding whether or not to use a index. 1. Reorganizing an index uses minimal system resources. The Full-Text Engine in SQL Server is fully integrated with the query processor. For more information, see Data Types (Transact-SQL). Basically, an index rebuild copies the index to another place. To reorganize index SQL Server, right-click it & choose Reorganize. Bulk amount records are deleted and updated frequently. To create SQL Server agent that will defragment specified indexes automatically, perform the following steps: Expand SQL Server Agent in Object explorer, right click on Jobs, and select New Job…: In General tab, specify the name and description for the job. x), you can create nonclustered B-tree or rowstore indexes as secondary indexes on a clustered columnstore index. Values: - 0: The script will reorganize or rebuild the fragmented indexes. However, recently this approach has. Designing efficient indexes is paramount to achieving good database and. · Add the startup option -T1222 to SQL. Reorganize does not holds blocking locks. Yes, rebuilding indexes will take a toll on your transaction log file. SQL Server 2012 (11. So, whenever I need to rebuild the indexes of my OrdersItemstable, with some millions of rows, my customers can't create/edit new orders for about 2-4 minutes. All nonclustered indexes will include the clustered key by default, in order to perform lookups when necessary. Coming to update stats, I would prefer to do it with Full Scan depending on the size of the databases. USE AdventureWorks; GO ALTER INDEX ALL ON Production. Once you select that option it will bring up the following screen. do nothing; reorganize an index; rebuild an index; Don't reinvent the wheel - just go see and use the script!Effective database performance tuning often relies on having precise database insights to determine actual root causes. Depending on the type of index and the Database Engine version, a rebuild operation can be done offline or online. SQL Server internally does not keeps in any system table the fragmentation value so how it is going to decide what criteria to select when. However, the meaning of those operations is different in the case of Columnstore. From a transaction log standpoint, reorganize index generates a lot more small transactions and can lead to substantially more resource-consumption than a rebuild. They are also configured from SSMS. Just go to the table, further expand the indexing folder and right after that you can right-click on it and select the option to rebuild all the indexes. 1. If you search for index rebuilding, you will find many complex scripts on the web, but this can also be done. 1. Feedback. Clustered Columnstore Indexes, as well as “regular” indexes, support the Rebuild and Reorganize operations. ALTER INDEX ALL ON [table_name] REORGANIZE; However, if you want to rebuild all the indexes on the table, you can run the following command. When I run alter index index [IndexName] on dbo. The SQL Server instance should have enough memory available to hold the largest table and perform the largest nonclustered index sort at the same time. Compaction is based on the existing fill. Hallengren website has an option to reorganize indexes say with 5% Fragmentation, and rebuild for 30% Fragmentation. Index should be reorganized when index fragmentation is between 10% to 40%. REBUILD will not just rebuild index, but also force update of corresponding statistics. He has the best practices coded into his scripts, so it should serve you well. Please refer to SQL Server Maintenance Plan Reorganize Index and Update Statistics Tasks to get more information about how to design the maintenance plan. The column Rebuild_Index_SQL in the vColumnstoreDensity view contains an ALTER INDEX REBUILD statement that can be used to rebuild your indexes. -Search all indexes of a table that have 5% or more of. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn,. It also enables faster growth in the future. Click the plus sign to expand the table on which you want to rebuild an index online. -Search all indexes of a table that have 5% or more of fragmentation and page_count >= 1000. index_id > 0 -- Indexes. REORGANIZE, UPDATE STATISTICS and a simple SELECT statement. Rebuilding indexes only does the index itself so the column stats are stale unless they hit the "20% data change + 500 records" criteria to trigger the auto-update. Improve this answer. 1. Therefore, you do not need to update statistics after performing ALTER INDEX REBUILD, DBCC DBREINDEX, DBCC INDEXDEFRAG, or ALTER INDEX REORGANIZE operations. SELECT total_execution_time, percent_complete, name,state_desc,last_pause_time,page_count FROM sys. One time job to reorganize the indexes One time job to rebuild the indexes Scheduling ongoing reorganization job SQL databases, similar to the file system on a disk, will fragment over time. I have configured Ola Hallengren's backup and integrity check scripts. Creating a SQL Server Maintenance Plan. Yup, that is one perfectly valid way. Instead of our phone book having 1,000 pages that are 100% full, we might have 1100 pages that are only 90% full. There are two options that can be used: Reorganize pages with the original amount of free space - this will use whatever was specified when the table was createdThe WSUSDBMaintenance script is a T-SQL script that can be run by SQL Server administrators to re-index and defragment WSUS databases. [CCS-KIDS1] GO. Change it to be weekly or even less frequently. SELECT OBJECT_NAME(ind. Your new index will have the size non less than the size of disabled index. Let’s move on to creating the Reorganize Index task via the Maintenance Plans and then Update Statistics task. 3) Reorganize indexes. For example, the heaviest index (clustered index and also pk) is running reorg for around 4 hours 30 min even do the index was. Designing efficient indexes is paramount to achieving good database and application performance. index rebuild/reorganize frequency. Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly. If you need more tempdb space, scale up the pool. For example, LDAPDB2. For example, one of the indexes with a page_count of 967 has a fragmentation percentage. Custom SQL Server Index. For maintenance i create a procedure that: -Shrink Database file (if is enabled) -Shrink Database log file. I have been advised by a contracted SQL Server expert that, after any change in # of CPUs and/or available memory, I should reorganize all indexes and then update all statistics or SQL Server will not make the full use of the new resources. Product REORGANIZE GO. In this article, we will go through these new. Then, drag and drop Rebuild Index Task into the maintenance plan designer. –In this article. skNumber) AS. I have maintenance job on SQL Server 2012 Enterprise Edition that runs daily to check index fragmentation and reorganize or rebuild the index based on the percentage of fragmentation. Rebuilding indexes with a new fill factor makes sure that database pages contain an equally distributed amount of data and free space. dm_db_index_physical_stats (Transact-SQL). the year and month columns. dm_db_index_physical_stats to get information about your index fragmentation (see the avg_fragmentation_in_percent column). SQL. Create an agent WMI alert ('Reorganize Relief Valve') on a performance condition. index_id > 0 -. The equivalent statistics update can be achieved by: UPDATE STATISTICS . When I run a maintenance plan to reorganize and rebuild tables indexes, it fails. Indexes with small number of pages (<1000) will usually. August 1, 2013 at 3:52 pm. Rebuild Index. The procedure uses SQL Server ALTER INDEX command, with the REORGANIZE option NULL. No, there is no auto-magical defragging of indexes. x) implemented major performance improvements for these index operations. The execute sql task should contain the index rebuild code along with stats rebuild . dm_os_wait_stats DMV, you will find 21 new wait types related to the SQL Server 2014 Lock Priorities. There needs to be an automated Index defragmentation job that will either reorganize or rebuild the indexes based on the fragmentation level for a specific table in a specific database. These will only generate transaction log when index pages are compacted and reorganized – so for less heavily fragmented indexes. In the Rebuild Indexes dialog box, verify that the correct index is in the Indexes to be rebuilt grid and click OK. December 3, 2010 at 12:21 pm. It shouldn't be used on. ALTER INDEX . Maintenance. The syntax for rebuilding indexes is very simple, we just add the "WITH ONLINE=ON" clause to the ALTER INDEX command. I used the sp_who2 procedure to see which queries were waiting, and which other query they were blocked by. Reorganizing queue indexes. 4. And if it is a clustered index, the entire table is copied. REORGANIZE statement. Use the ALTER TABLE command to rebuild the Heap. For more information about this enhancement, check the SQL Server 2016. This script detects indexes for rebuilding using these rules: Rebuild the index when these conditions are true: - deleted entries represent 20% or more of the current entries. Answer: If you are using SQL Server 2014, 2016, 2017 or latest version of SQL Server, you can run the following command and it will abort the index rebuilding process after the period of the time. x) and. For a table with an ordered clustered columnstore index, ALTER. One of our DBA says that she does not do reorganizing and rebuilding of indexes on daily and monthly schedule througth maintainance plan, because it will grow the. SQL Server 2012 (11. These options define how much. Bad internal fragmentation (having lots of free space on the pages) means the index is bigger than it needs to be. 2. Summary: SharePoint Server uses SQL Server to store most of the content for the Web site and configuration settings. ALTER INDEX index_name ON table_name REORGANIZE OR. before i answer your question is the database on simple recovery. This script contributed by the Microsoft WSUS team. This is especially true when you have less than 4 pages. We leave default values here as well. (About 1 TB of data including myIndex (non-clustered)). Index rebuilding process uses more CPU and it locks the database resources. dm_db_index_physical_stats DMV to identify the fragmentation. The simple reason which comes to my mind is rebuild should be done only when index is fragmented. Reindex the WSUS database. Is this possible to do? In earlier versions of Microsoft SQL Server it could cause system slowdown to reorganize or rebuild a large index. The index can be rebuilt using ALTER INDEX REBUILD T-SQL command. Examining the clustered index, I discovered that while it has 0% fragmentation listed, it has a page fullness value of only 23%. On the Standard bar, select New Query. This means every time we need to scan the. If you're looking for whenif the index was ever rebuilt, the Ola sp does have the ability to log to a table and the previous DBA hopefully utilized this feature. GO. The documentation is also indicating that: Online index operations are not available in every SQL Server edition. Index Rebuild operation first drops and then recreates the index. In the Shrink database dialog, details about database size will be provided, and an option to choose if files will be reorganized. Well, I’d wager some of it is backwards compatibility. Product REBUILD. IndexOptimize provided by Ola Hallengren. Expand the table on which you want to reorganize an index. The first item is "Reorganize data and index pages". [Product] SET ( ALLOW_PAGE_LOCKS = ON ) ALTER INDEX [PK_Product] ON [Production]. The index reorganize operation will be always performed online. I have been advised by a contracted SQL Server expert that, after any change in # of CPUs and/or available memory, I should reorganize all indexes and then update all statistics or SQL Server will not make the full use of the new resources. The schema is the user name under which the table was created. It is used when the operation takes a. This prevents modifications to the table. The SQL Server Maintenance Solution lets you intelligently rebuild or reorganize only the indexes that are fragmented. Designing the SQL Server Reorganize Index Task The script below allows you to rebuild indexes for all databases and all tables within a database. The link points to SQL Server 2014 docs, but the syntax should work on 2005 and 2008 as well. The. If the index’s design doesn’t allow for that, IndexOptimize will try to rebuild the index online. 3) Reorganize indexes. Similarly, removing fragmentation in a. The second set of options, in figure 8-5, rebuilds only a single partition of a clustered columnstore index and optionally changes the compression type. As well as maintenance plans, SQL Server Agent jobs are also a handy way to automate and schedule index defragmentation jobs in SQL Server. To create SQL database maintenance plan, launch SQL Server Management Studio > expand the database instance > Management > right-click on the maintenance plan > New Maintenance Plan. dm_db_index_physical_stats in a script to rebuild or reorganize indexes). SQL Server 2019 adds resumable online index creation, and it’s pretty spiffy: 1. Mar 8, 2021, 2:47 PM. A clustered table provides a few benefits over a heap such as controlling how the data is sorted and stored, the ability to use the index to find rows quickly and the ability to reorganize the data by rebuilding the clustered index. As part of query execution, the Full-Text Engine might receive input from the thesaurus and stoplist. line is helpful to give the user some indication of what indexes it is rebuilding and how far it has progressed. ALTER INDEX ALL ON table_name REORGANIZE OR. Let us create a Heap Table and insert some records in it and then check the fragmentation. ALTER INDEX ALL ON table_name REBUILD OR. Navigate to Tasks / Shrink / Database. 2. This is a best practice for performance when you rebuild or reorganize indexes. 1 and another one for versions starting from 6. Rebuilding basically creates an entirely new copy of the index, and is much more effective at reducing fragmentation - but this comes at a cost, both in terms of time and disk space. USE AdventureWorks; GO ALTER INDEX ALL ON Production. Yup, that is one perfectly valid way. Recall the paper example from above: a rebuild would be like reprinting the document in the correct order and trashing the old ones. I'm just using the reorg index task that is in the maintenance plan designer GUI. Index Rebuild : This process drops the existing Index and Recreates the index. Index Reorganize During Database Full Backup. You can reorganize all indexes that are defined on a table by rebuilding the index data into unfragmented, physically contiguous pages. It may also take longer to REORGANIZE a highly fragmented index than to REBUILD it. Just go to the table, further expand the indexing folder and right after that you can right-click on it and select the option to rebuild all the indexes. Here's another script to add to the list. They are also configured from SSMS. Stack Exchange Network. Now. This means that for a lightly fragmented index (e. Next time it runs slow, check out how fragmented the clustered and non clustered indexes are, and also check to see if you have AUTO_UPDATE Stats enabled!I would suggest that you use Ola Hallengren's scripts, freely available and widely used. The database is using the Simple Recovery model. These scripts are widely tested in the community and are much flexible so that you. It’s an unbelievably, disgustingly, repulsively bad idea. before i answer your question is the database on simple recovery. object_id =. column_name DISABLE; ALTER INDEX. Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance When you perform online index operations, the following guidelines apply: Clustered indexes must be created, rebuilt, or dropped offline when the underlying table contains the following large object (LOB) data types: image, ntext, and text. Starting with SQL Server 2016 (13. Hi, The widely used thresholds are: Reorganize if fragmentation is between 10-30%. - 1: The script will just output the index reorganization or rebuild commands without running them. Rebuild if > 30%. You can read more on rebuilding indexes here . I suggest 50% for REORGANIZE, 80% or even 90% for REBUILD. After executing the index defragmentation maintenance plan, we can check the status of the maintenance plan by checking the status of the SQL Agent job that is used to execute the maintenance plan tasks. I don't remember if IDENTITY INSERT ON will help. INDEX_REORGANIZE Reorganizes the index. Checking the reorganize files box and as a result, shrinking the database file(s) will only impact the database negatively. Reorganize and Rebuild Indexes; SQL Server 2005 Index Best Practices; Fixing Index Fragmentation in SQL Server 2005 and SQL Server 2008; Sample Table for SQL Server Index Performance Testing. 1. Expand the Indexes folder. You can use sys. The Microsoft Docs page for SQL Server statistics states: Operations such as rebuilding, defragmenting, or reorganizing an index do not change the distribution of data. instead, you do it separately in order to do it more or less batch mode. It's a great piece of work - it allows you to define fragmentation levels for which you. Here is the image for additional clarity. A clustered index's key columns are called a clustering key. You will often see advice to perform a REBUILD on highly-fragmented indexes, rather than a REORGANIZE-- This is because rebuilding from scratch can be more efficient. 100% complete End Progress Error: 2016-06-10 22:30:23. The only way to remove wasted space and restore the correct page ordering is to rebuild or reorganize the indexes on a regular basis. This index uses column-based data storage and query processing to achieve gains up to 10. Tablename rebuild with (online=on) on. I suggest 50% for REORGANIZE, 80% or even 90% for REBUILD. On the Define Reorganize Index Task page, select the server or servers where you'll be moving index pages into a more efficient search. Reorganize a fragmented SQL Server index and optimize performance. I also removed the the second part of the case statement that uses REORGANIZE. You can still run the index reorg/rebuild as part of your maintenance scripts. @databaseToCheck (optional) Values: - NULL: It will scan all databases with compatibility level SQL Server 2005 (90) or later for fragmented indexes. You can drop and create indexes at will. It doesn’t work on the intermediate pages between the root and the leaf. In SQL Server, you "might" run into issues with "updating primary key". As tables grow and shrink, this fragmentation can ultimately play a role in how well SQL runs. Rebuild and Reorganize Index using SQL Server Management Studio (SSMS) Find and expand the table in Object Explorer >> Open Indexes >> Right-click on the target index >> Rebuild or Reorganize. Then you can do an alter index with the rebuild clause whenever your threshold is reached. The select statement is blocking on the clustered index (object id 446624634) whereas the object_name() is blocking on the table (object id 462624691). RCSI utilizes tempdb heavily but gives performance boost. Copy and paste the following example into the query window and click Execute. I don't think Windows SQL Server Maintenance has this option yet. The import process should be reworked to bulk-load one table at a time. The following index operations require no additional disk space: ALTER INDEX REORGANIZE; however, log space is required. When an index becomes skewed, parts of an index are accessed more frequently than others. Another possibly is that the index is being rebuilt and then re-fragmenting again. REORG INDEXES/INDEXES command reorganizes indexes. line is helpful to give the user some indication of what indexes it is rebuilding and how far it has progressed. indexes ind ON ind. It was trying to do so because when Index is REBUILT (with. For maintenance i create a procedure that: -Shrink Database file (if is enabled) -Shrink Database log file. The reason given is that the indexes and statistics are partly based on available CPU and memory resources. The log size shouldn't be unrestricted. インデックスの断片化の状態がわかったら、それによってインデックス (index) を再構成 (Reorganize)するか、または再構築 (Rebuild) するか決定します。. You can still run the index reorg/rebuild as part of your maintenance scripts. In SQL Server, when rebuilding an index which previously had statistics updated with PERSIST_SAMPLE_PERCENT, the persisted sample percent is reset back to default. You need to assemble the SQL prior to calling SP_ExecuteSQL, i. 3,895 9 51 78. When you reorganize the index, you go through the existing index, cleaning up blocks for deleted records etc. Depending on the fragmentation level, you need to rebuild or reorganize the indexes. It's a great piece of work - it allows you to define fragmentation levels for which you. To run the Maintenance plan, make sure your SQL server agent service is running. This manual operation two-step. For now, I have just turned off the weekly index reorganize task which is not really a good long term solution. Reorganizing an index is always executed online. In it, enter the Job name, owner, optionally Category. ) Are there open cursors in the database, if so skip the database. Create SQL Server Columnstore Non-Clustered Index. The purpose is to reduce the size of database and increase the db performance. There’s no hard and fast rule here but I generally say where. . 3,895 9 51 77. Here is the image for additional clarity. The Microsoft Docs page for SQL Server statistics states: Operations such as rebuilding, defragmenting, or reorganizing an index do not change the distribution of data. Reorganizing should be used at lower (<30%) fragmentations but only rebuilding (which is heavier to the database) cuts the fragmentation down to 0%. To add to this, you need to learn your system and how it's used. Someone else set it up. This could be done (and is in some databases) when you make a deletion, but that imposes some performance penalty. To create a new maintenance plan, right click on Maintenance Plan and select New Maintenance Plan and the following window will open. The following index operations require no additional disk space: ALTER INDEX REORGANIZE; however, log space is required. Add a comment. To solve this, I want to use the REORGANIZE operation every time. To create SQL database maintenance plan, launch SQL Server Management Studio > expand the database instance > Management > right-click on the maintenance plan > New Maintenance Plan. Additionally, after reorganizing indexes it is reasonable to update the statistics as this operation does not update the statistics like the index rebuild operation. You can also change this threshold via parameters. Best regards, Carrin Cancelling / Stopping ALTER INDEX REORGANIZE. Server Configuration: MS SQL Server 2008 Enterprise Windows Server. It is causing other queries to wait, even simple ones like: SELECT * FROM tableName WHERE indexedColumn = @value. Index rebuilds look. g. Using SQL Server Management Studio: In the Object Explorer pane navigate to and expand the SQL Server, and then the Databases node Expand the specific database with fragmented index Expand the. Additionally, after reorganizing indexes it is reasonable to update the statistics as this operation does not update the statistics like the index rebuild operation. Points: 1004494. To run the Maintenance plan, make sure your SQL server agent service is running. . For a reorganize they are not, but just because a reorganize happened does not necessarily mean that a stats update is necessary. 環境SQL Server 2012参考前回の以下の投稿に若干手を加えて作成しました。SQL Server の指定したテーブルのインデックス名を取得する方法ストアドプロシージャを実装するC…too slow alter index reorganize/rebuild (with online) I have 2 similar SQL Server installations on 2 similar GCP projects. Expand the Tables folder. This procedure automatically chooses whether to rebuild or reorganize an index according to its fragmentation level, amongst other parameters, and update statistics. I will read through them and try implementing them. The query causing the block is in the format: ALTER INDEX [indexName] ON tableName REORGANIZE. Problem. ALTER DATABASEdb_name SETREAD_COMMITTED_SNAPSHOT ON go Alter index Index_name on table_name. Monitor tempdb during rebuild operations. I was going to take a look at Ola Hallengren's scripts and some other stuff but wanted to see if there was possibly a simple explanation for this. The below T-SQL statement can be used to retrieve these wait types: 1. If you what you are saying is true, even reorganizing the indexes that have never been, may. My predecessor created a Maintenance Plan with 4 tasks: CHECKDB; SHRINKDATABASE (N'DB1',10,TRUNCATEONLY); it seems to be running a REORGANIZE on all Indexes for all Tables and Views and "Compact Large Objects" is checked; and then it UPDATE. where, table_name is the name of the table to be reorganized. Thank you, ShamAnswers. dm_db_index_physical_stats(DB_ID(), NULL, NULL, NULL, NULL) indexstats INNER JOIN sys. I used this approach to improve performance and it worked perfectly for a long time. Index Reorganize During Database Full Backup. – Ed B. The rebuild command will defragment all those intermediate pages. CREATE TABLE DBO. In Object Explorer, connect to an instance of Database Engine. SET @BackupDirectory = N'C:Backup' -- <== Change this to your backup directory. The performance benefit may not be noticeable for indexes that are used primarily for seek operations. Rebuilding an index drops and re-creates the index. Under Select a page, select Options. To estimate the duration of the REORGANIZE DATABASE you can use the SQL statement from the "Step 1" section in the attached "REORGANIZE estimator" . Right-click the table on which you want to specify an index's fill factor and select Design. We have decided to use the following code to compute a fragmentation % for each full-text index. Summary: SharePoint Server uses SQL Server to store most of the content for the Web site and configuration settings. However I want advice whether it is required to setup the SQL Server Index and Statistics Maintenance scripts, because my SQL server is running on a SAN infrastructure and I have read that there is no benefit to setting fill-factor to less than 100%, or to perform index. You don’t get bonused based on the amount of free space on your drives. SQL Server Index Rebuild and Reorganize Script. SQL Server 2008 provided a special type of column called a spatial column, which is a table column that contains data of a spatial data type, such as geometry or geography. set @SQL = 'alter index ' + QuoteName ( @IndexName ) + ' on ' + QuoteName ( @TableName ) + ' rebuild';. Reorganize an index For rowstore indexes, the Database Engine defragments only the leaf level of clustered and nonclustered indexes on.