EventID, MAX (b. x), REORGANIZE is only used to compress CLOSED rowgroups into the columnstore. They are also configured from SSMS. In both these scenarios they are blocked by session 54 – the index rebuild. ) Reorganize = fragmentation level is between 5% and 30%. If you don’t spend much time with SQL Server and you. Script and result below: ALTER INDEX ALL ON Fragmented REORGANIZE GO1 Answer. These are two different modes to remove index fragmentation. To run the Maintenance plan, make sure your SQL server agent service is running. Click the plus sign to expand the Tables folder. The script uses the following parameters: @reportOnly (required) Values: - 0: The script will reorganize or rebuild the fragmented indexes. sql to our customers's SQL Server instance. It can be. IndexOptimize is supported on SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, SQL Server 2014, SQL Server 2016, SQL Server 2017, SQL Server 2019, SQL Server 2022, Azure SQL Database, and. 1. We need to set these parameters for the job IndexOptimize - USER_DATABASES: @UpdateStatistics = 'ALL'. fulltext_index_fragments GROUP BY OBJECT_NAME([table_id]) HAVING COUNT([fragment_id]) >=30 Also,. You can also see if a reorganize will help until you can do a full rebuild. line is helpful to give the user some indication of what indexes it is rebuilding and how far it has progressed. Rebuild the Indexes if the Fragmentation level is > 30%. Hi, The widely used thresholds are: Reorganize if fragmentation is between 10-30%. Rebuilding an index can be executed online or offline. ), which reorganizes all the indexes on the. ” Select the vault database(s). Setup a new job to run update stats via IndexOptimize daily. If a nonclustered index is being rebuilt, a shared lock is held on the table in question during the operation. SQL Server Tools. Copy. Mine might be such a scenario. Note: You can select “Reorganize All” to reorganize all the indexes in the table. Note: You can select “Reorganize All” to reorganize all the indexes in the table. Columns with text, image, ntext, varchar (max), nvarchar (max) and varbinary (max) cannot be used in the index key columns. You don’t get bonused based on the amount of free space on your drives. Therefore, you do not need to update statistics after performing ALTER INDEX REBUILD, DBCC DBREINDEX, DBCC INDEXDEFRAG, or ALTER INDEX REORGANIZE operations. If there are frequent changes to the full-text catalog, use this. ) Index Size is greater than 5 MB's. One of the major reasons I wrote DBCC INDEXDEFRAG for SQL Server 2000 was as an online alternative to DBCC DBREINDEX. You can reorganize all indexes that are defined on a table by rebuilding the index data into unfragmented, physically contiguous pages. Someone else set it up. There are two main ways to defragment a Heap Table: Create a Clustered Index and then drop it. You can do maintenance in phases, where each maintenance phase covers a subset of. If the index’s design or your SQL Server edition doesn’t allow for that, it’ll perform the last resort – an offline index rebuild. DROP INDEX KIDS1. The fully qualified name or alias in the form: schema. Rebuilding an index means that a whole new set of pages is allocated for it. For example, we have a set of tables that support an application. It also enables faster growth in the future. This is how records are made unique in the context of a clustered index. When you rebuild, SQL creates a new fresh index. Stop. Beginning with SQL Server 2016 (13. Find and remove unused indexes – everything that is unused doesn’t do anything good. If you are using Windows Internal Database, you will need to use the sqlcmd utility, which can be. For information about how to maintenance index, refer to MS document. To create a new maintenance plan, right click on Maintenance Plan and select New Maintenance Plan and the following window will open. Rebuilding a clustered columnstore index is an offline operation until SQL Server 2019 when the ability to rebuild online was introduced. SQL Server 2012 (11. However, you can create a staging table insert all rows into that, drop original table and rename staging table to original. There are two options to fix fragmentation. Right-click on the index and select Rebuild. The execute sql task should contain the index rebuild code along with stats rebuild . One or more of the databases used by SharePoint Server have fragmented indexes. Bad internal fragmentation (having lots of free space on the pages) means the index is bigger than it needs to be. The query causing the block is in the format: ALTER INDEX [indexName] ON tableName REORGANIZE. Although this option increases the amount of temporary disk space that is used to create an index, the. indexesのindex_id）または1、0、-1、-2のいずれか指定できます。 -1は、テーブルに関連するすべてのタイプのページ（行内データ、ローオーバーフローデータ、IAM、すべてのインデックス）についての完全な. Rename. ) Are there open cursors in the database, if so skip the database. I'm just using the reorg index task that is in the maintenance plan designer GUI. If you read complete article it was trying to point out the commands or operations in SQL Server which would require additional disk space and others that would not. It defragments the leaf level of clustered and nonclustered indexes on tables and views by physically reordering the leaf-level pages to match the logical, left to right, order of the leaf nodes. The Index Reorganize operation physically reorders leaf level pages of the index to match the logical order of the leaf nodes. 3. 3,895 9 51 77. It was trying to do so because when Index is REBUILT (with. You can query the sys. ALTER INDEX . We have decided to use the following code to compute a fragmentation % for each full-text index. First it’ll try an index reorganize, which is an online operation. Method 1: Create a SQL Server Agent job to rebuild indexes and update statistics. Unlike DBCC INDEXDEFRAG, or ALTER INDEX with the REORGANIZE option, DBCC DBREINDEX is an offline operation. SQL Server ALTER INDEX Syntax. The entire index has to be read to. How many pages are in these indexes. The maintenance plan. This to me would be a sign that constant rebuilds of that index actually aren't a good help. The following index operations require no additional disk space: ALTER INDEX REORGANIZE; however, log space is required. Create a job to run your index reorganize ('Reorganize'). This means every time we need to scan the. Share. Hallengren website has an option to reorganize indexes say with 5% Fragmentation, and rebuild for 30% Fragmentation. When I run alter index index [IndexName] on dbo. Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly. Maintain Index and Column StatisticsAs people have mentioned here, your indexes do not automatically rebuild. 1. I don't remember if IDENTITY INSERT ON will help. Depending on the fragmentation level, you need to rebuild or reorganize the indexes. 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. 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. This caused the system to reorganize or rebuild some indexes even. Use ALTER INDEX REORGANIZE, the replacement for DBCC INDEXDEFRAG, to reorder the leaf level pages of the index in a logical order. cyNumber) AS cyNumber, MAX (b. Here’s how: Download the MaintenanceSolution. Next the New Job window will open. Scale back down once the index rebuild is complete. 3) Reorganize indexes. failed with the following error: "The index "SpatialIndex-20180705-165942" on table "extended_index_113435478_384000" cannot be reorganized because page level locking is disabled. ". I'm just using the reorg index task that is in the maintenance plan designer GUI. This could be further tweaked to handle only indexes that need maintenance based on fragmentation levels as well as then doing either an index reorg or an index rebuild. These will only generate transaction log when index pages are compacted and reorganized – so for less heavily fragmented indexes. You can drop and create indexes at will. An index reorganize holds an intent-exclusive table lock throughout the operation, which will only block shared, exclusive, and schema-modification table locks. . Rename. The first item is "Reorganize data and index pages". After rebuilding indexes, the application performs badly. When using columnstore indexes, the delta store may end up with multiple small row groups after inserting, updating, and. less than 30% fragmentation), it’s generally faster to reorganize the index, but for a more heavily fragmented index, it’s generally faster to just. In Object Explorer, click the plus sign to expand the database that contains the table on which you want to specify an index's fill factor. Artemakis Artemiou. You should also include page_count value in your query. In it, enter the Job name, owner, optionally Category. 0. We are planning to run index rebuild/reorganize on a regular basis in our application. Jan 11 at 14:24. The length of time the rebuild takes is related to the size of the index, not the amount of fragmentation in it. The following options are available on this page. Particularly if you are in full recovery. So stay tuned as we should have a follow up post soon on his findings and recommendations for. [FactInternetSales] REBUILD PARTITION = ALL WITH (PAD_INDEX = ON, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF,. In SQL Server, you "might" run into issues with "updating primary key". - 1: The script will just output the index reorganization or rebuild commands without running them. Create a job to run your index reorganize ('Reorganize'). Select Allow online DML processing, and then select True from the list. Below the last two rows that displays the fail: Source: Reorganize Index Executing query "ALTER INDEX Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 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. (About 1 TB of data including myIndex (non. August 1, 2013 at 3:52 pm. We don't want to run index optimization on multiple databases at the same time The code uses stored procedure dbo. Create SQL Server Columnstore Non-Clustered Index. Beginning with SQL Server 2016 (13. The Reorganize Index task encapsulates the Transact-SQL ALTER INDEX statement. Reorganizing an Index should be done when you have elevated amounts of white space within your index (i. The following index operations require no additional disk space: ALTER INDEX REORGANIZE; however, log space is required. 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. 3) Reorganize indexes. Click the plus sign to expand the table on which you want to rebuild an index online. This is quite a big problem in SQL Server, as your indexes will fragment over time. Are you seeing problems related to statistics? Or is this just. LDAP_ENTRY. One of the biggest performance hits that you will see on your databases, next to not having indexes, is indexes that are very fragmented. We need to drag and drop tasks from the Toolbox (to open the toolbox use Ctrl + Alt + X) into the gray workspace area on the bottom as shown in the below screenshot. m. x) and SQL Server 2014 (12. It may also take longer to REORGANIZE a highly fragmented index than to REBUILD it. But if you need to change something about an index (that. There’s no hard and fast rule here but I generally say where. Summary: SharePoint Server uses SQL Server to store most of the content for the Web site and configuration settings. USE [SQLMaestros] GO ALTER INDEX [PK__Subscrib__7DFEB63423B0DFD3] ON [hol]. On a data partitioned table, you can reorganize a specific nonpartitioned index on a partitioned table, or you can reorganize all the partitioned indexes on a. Reorganizing an index only deals with the fragmentation that exists, and the more fragmentation there is, the longer a reorganize will take. If the clustered index is being rebuilt, an exclusive table lock is held. Index Reorganize During Database Full Backup. Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) Poorly designed indexes and a lack of indexes are primary sources of database application bottlenecks. indexes ind ON ind. In the New Maintenance Plan dialog box, in the Name box, type a name for the plan and select OK. Values: - 0: The script will reorganize or rebuild the fragmented indexes. 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. dm_db_index_physical_stats fincation have index_id which display heap and index informatiob. As part of query execution, the Full-Text Engine might receive input from the thesaurus and stoplist. We need to drag and drop tasks from the Toolbox (to open the toolbox use Ctrl + Alt + X) into the gray workspace area on the bottom as shown in the below screenshot. 3 and a half hours later, it's not finished. When the catalog reorganize is occurring the users will still be able to query the full text data?. 2 contributors. WHY ? Rebuilding is massive time resource consuming, reindexing more fast than rebuildIn SQL Server Management Studio, in Object Explorer, expand the server. SET @BackupDirectory = N'C:Backup' -- <== Change this to your backup directory. It cames in two flavours: online and offline. 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. For example, LDAPDB2. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn,. REORGANIZE INDEX blocks other queries. Automatic Tuning on Azure SQL Database does not do maintenance of indexes and statistics. I know the sql to perform this action on all indexes in a table is. Usually, you should rebuild the index if it has a fragmentation greater than 30% and reorganize it if it has less than 30% fragmentation. Shrinking with data movement (without TRUNCATEONLY) will fragment your indexes. This could be done (and is in some databases) when you make a deletion, but that imposes some performance penalty. Here is the image for additional clarity. Right-click the table on which you want to specify an index's fill factor and select Design. The possibility to. Add a comment. dm_db_index_physical_stats DMV to identify the fragmentation. SQL Server development version and Enterprise version has option ONLINE, which can be turned on when Index is rebuilt. To update all statistics in a table. Apply SQL Server index key column best practices. Index automation Job script. There are two files attached - one for versions prior to 6. My problem is that the reorg is running for a very long time. The second part of this tip is intended to reduce the duration for update statistics as it pertains to both. Coming to the point out of all there is a database with 51Gb, yes we have seen some big tables majorly occupying space in db. Right-click on the Maintenance Plans and go to Maintenance Plan Wizard. Solution. That means that it sometime has to contend with blocking because it's sharing the same pages that. set @SQL = 'alter index ' + QuoteName ( @IndexName ) + ' on ' + QuoteName ( @TableName ) + ' rebuild';. Reorganizing an index only deals with the fragmentation that exists, and the more fragmentation there is, the longer a reorganize will take. e. May 5, 2010 at 8:00 am. Reorganize Index Task Forum – Learn more on SQLServerCentral. Don’t shrink your database files just to free up drive space. Expand the Indexes folder. This can be checked using:. You cannot say, “If the index is 45% or more fragmented, rebuild it– otherwise do nothing. ALTER INDEX index_name ON table_name REBUILD -- REORGANIZE. T-SQL Alter Index. Fragmentation. You have to do some research and tailoring of how and when to do it based on your environment, though. You can read more on rebuilding indexes here . 5) Perform full database backup. Here is the image for additional clarity. As of this writing, our super smart SQL Architect and Performance Expert (Jeff Schwartz) is working on some testing to see if there is any measurable overhead to all the misleading out-of-space messages generated during index REORGANIZE maintenance. 4. Locking. Additionally, after reorganizing indexes it is reasonable to update the statistics as this operation does not update the statistics like the index rebuild operation. 1. In it, enter the Job name, owner, optionally Category. The database is using the Simple Recovery model. alter index all on table_name reorganize; But I only want to rebuild or reorganize if fragmentation percentage on each index is between a certain range. For more information, see the article: Gathering SQL Server indexes statistics and usage information. That's why as a rule of thumb, for fragmentation greater than about 30%. I have this piece of code which helps me rebuild indexes if they are fragmented to a certain percentage. It is compatible with all versions of SQL Server 2005 , 2008 , 2012 , 2014 and 2016. Here we would like to introduce you to the three most common ways of how to Reorganize and Rebuild Indexes. Basically, an index rebuild copies the index to another place. It doesn’t work on the intermediate pages between the root and the leaf. dm_db_index_physical_stats) is <1000 you don't need to rebuild or reorganize such. Reorganizing the indexes will take less time, and less effort from the SQL server thus they can be done in a weeknight type of instances. If you what you are saying is true, even reorganizing the indexes that have never been, may. REORG INDEXES/INDEXES command reorganizes indexes. If you search for index rebuilding, you will find many complex scripts on the web, but this can also be done. The purpose is to reduce the size of database and increase the db performance. Syntax ALTER INDEX index_name ON table_name. Reorganize or rebuild an index SQL Server Management Studio. x) and. Index Rebuild operation first drops and then recreates the index. 1 and another one for versions starting from 6. In the official SQL Server documentation, Microsoft advises about the best method for removing index fragmentation in SQL Server as per below: When you have an index. Reorganizing an index uses minimal system resources. less than 30% fragmentation), it’s generally faster to reorganize the index, but for a more heavily fragmented index, it’s generally faster to just. Index rebuilding process uses more CPU and it locks the database resources. As tables grow and shrink, this fragmentation can ultimately play a role in how well SQL runs. Right-click Maintenance Plan and select Execute. SQL Server ALTER INDEX Syntax. regarding reorganize - there is an exception to this - if you have columnstore indexes that are frequently subject to deletions or that are subject on inserts in small batches then running reorg. For maintenance i create a procedure that: -Shrink Database file (if is enabled) -Shrink Database log file. Then, drag and drop Rebuild Index Task into the maintenance plan designer. Bulk amount records are deleted and updated frequently. Reorganizing the indexes will take less time, and less effort from the SQL server thus they can be done in a weeknight type of instances. The only. Index rebuilds look. As data is added to the table, the free space fills because the fill factor isn't maintained. This would also keep the original order of columns. REORGANIZE Tells SQL Server to perform a master merge, which involves merging the smaller indexes created in the process of indexing into one large index. Test all three and see which is fastest and which gives the least index fragmentation. The nonclustered B-tree index is updated as changes occur to the columnstore index. Yup, that is one perfectly valid way. I have an index on a . In the IndexOptimize procedure, you can define a preferred index maintenance operation for each fragmentation group. Also, running UPDATE STATISTICS gets you both index and columns stats updates. 2. I suggest 50% for REORGANIZE, 80% or even 90% for REBUILD. There are two options to fix fragmentation. Large object data is data with the image, text, ntext, varchar (max), nvarchar (max), varbinary (max), or xml data type. The “Reorganize” index option is more facilitated than the “Rebuilt” index. So it can remove some fragmentation - but only on a limited scale. I don't think Windows SQL Server Maintenance has this option yet. Microsoft's guidance on index reorganize and rebuild supports this: For example, if a given index is used mainly for scan operations, removing fragmentation can improve performance of these operations. SQL Server 2005 Index Rebuild/Reorganize. Rebuilding an index drops and re-creates the index. I used the sp_who2 procedure to see which queries were waiting, and which other query they were blocked by. USE AdventureWorks2022; GO -- The following example updates the statistics for all indexes on the. For us to perform this test we will first create a simple test table with a few columns and load a fair amount of data into it. Sorted by: 1. However, the meaning of those operations is different in the case of Columnstore. The alternative is to do an index reorganize, either using my old DBCC INDEXDEFRAG or the new ALTER INDEX. Offline Rebuilding: This is faster but makes the database unavailable for the duration of the operation. However, these numbers are only for general guidance as a starting point for your environment. Examining the clustered index, I discovered that while it has 0% fragmentation listed, it has a page fullness value of only 23%. This is a powerful feature that you can use to your advantage. Any full-text indexes of non-trivial size with fragmentation of at least 10% will be flagged to be re-built by our over-night maintenance. Ignore anything with less than 15-20 pages. In Object Explorer, click the plus sign to expand the database that contains the table on which you want to specify an index's fill factor. Ignore: Fragmentation levels of 10 percent or less should not pose a performance problem, so you don’t need to do anything. These scripts are widely tested in the community and are much flexible so that you. 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. I will read through them and try implementing them. Last weekend the index maintenance took more than 5 hours and the full backup was running at the same time. The query causing the block is in the format: ALTER INDEX [indexName] ON tableName REORGANIZE. In the Object Explorer panel locate the database in question, and use right mouse click to bring up the context menu. You can go the easy way and use SQL Server Maintenance Plans, but unfortunately they’re very simplistic: you can only say “rebuild all the indexes” or “reorganize all the indexes”. First, let’s look at the index in this tutorial with sample code to create a non-clustered SQL Server index on a sales table. Therefore, focus on the larger indexes because their pages are less likely to be cached by SQL Server. Mar 8, 2021, 2:47 PM. This requires the DBA to create such a maintenance job. First it’ll try an index reorganize, which is an online operation. Databases list. REORGANIZE statement. Rebuilds are generally faster. Follow. Right-click the index for which you want to set the max degree of parallelism and select Properties. 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. If you have fragmentation, you need to REBUILD or REORGANIZE. Object: SQLServer:Databases; Counter: Percent Log Used ; Instance: (your big database name) Alert if counter rises above: 80; Response: Execute job ('Reorganize Check') Create a job ('Reorganize Check')The syntax to reorganize a columnstore index is similar to that for a standard B-tree index: 1. you are reading your query result incorrect. It is also recommended to read the previous article of this series - Rebuild Index Task before reading this one. Each night the maintenance plan is successful, but these commands take the longest to execute 3 hours, 3 hours and 5 hours respectivelly. Disk space is an important consideration when you create, rebuild, or drop indexes. Rebuild/Reorganize indexes weekly – As it was mentioned previously, this will depend on the environment, situation, database size, etc. The log size shouldn't be unrestricted. 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. I don't think Windows SQL Server Maintenance has this option yet. Eliminate all deleted rows. 2) - this is where it might seem you "solved" the problem with index rebuild, but index rebuild could rather be consequence for better, more tailored execution plan for the problematic query/queries. Then, drag and drop Rebuild Index Task into the maintenance plan designer. For more information, see CREATE INDEX (Transact-SQL). It's better to do reorg on Nightly. The syntax for rebuilding indexes is very simple, we just add the "WITH ONLINE=ON" clause to the ALTER INDEX command. The detailed information can also be useful to determine whether your dedicated SQL pool is being impacted by a large number of small, fragmented tables, which can lead to delays in compilation. e. Server Configuration: MS SQL Server 2008 Enterprise Windows Server. Depending on the type of index and the Database Engine version, a rebuild operation can be done offline or online. SQL Server doesn’t automatically correct index fragmentation problems. 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. This script contributed by the Microsoft WSUS team. 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. Workaround. before i answer your question is the database on simple recovery. It checks the SQL Server licences, if Enterprise it will rebuild the index online else it. Reorganize/Rebuild SQL Server database indexes using ApexSQL Defrag ApexSQL Defrag is a 3rd party tool made specifically to automatically fix index fragmentation in SQL Server databases. This REBUILD option is available in SQL Server 2008 onwards. December 3, 2010 at 12:21 pm. Rebuild or Reorganize indexes Ask Question Asked 1 year, 1 month ago Modified 1 year, 1 month ago Viewed 1k times 0 I want to reorganize or rebuild indexes. The. 1. 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. Rebuild drops. Doing so will: Eliminate all data in the deltastore. Note The commented fnMs_GenerateIndexMaintenanceScript function is a table-valued function (TVF) that can. IndexOptimize is the SQL Server Maintenance Solution’s stored procedure for rebuilding and reorganizing indexes and updating statistics. 11. Microsoft's guidance on index reorganize and rebuild supports this: For example, if a given index is used mainly for scan operations, removing fragmentation can improve performance of these operations. To work around this, try the following methods: Method 1 ( recommended ): Limit the number of full-text indexes in the same catalog. You can do maintenance in phases, where each maintenance phase covers a subset of. If the index. Here are a couple of examples. Inadequate disk space can degrade performance or even cause the index operation to fail. This topic provides. However, my SQL Server license is Standard and I can't rebuild indexes online. [myTable] REORGANIZE WITH ( LOB_COMPACTION = ON ) I have the above query running for 16 days (still running), the table is a dummy table used for benchmark tests, it has over 10 Billion rows. Same with updating the stats first and then rebuilding. This index design guide contains information on index architecture, and best practices to help you design effective indexes to meet the needs of. g. SQL Server - Reorganize and Rebuild Indexes :. 100% complete End Progress Error: 2016-06-10 22:30:23. When you rebuild indexes Offline, the operation acquires a Schema modification (Sch-M) lock on the table. We check the time for sample select query - it was 2s just after index creation. Large tables should be in their own full-text catalog. Hi, The widely used thresholds are: Reorganize if fragmentation is between 10-30%. When rebuilding offline your index is completely unavailable, but the operation is faster than that online. do nothing; reorganize an index; rebuild an index; Don't reinvent the wheel - just go see and use the script!I am a new DBA to a SQL 2005 production Report server. Basically, an index rebuild copies the index to another place. _in_percent > 50 AND ss. If you need more tempdb space, scale up the pool. Does database on which tables reside have database owner. The first and most popular method is to rebuild indexes. Use the ReorganizeIndex Task dialog to move index pages into a more efficient search order. 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. Indexes remain compressed when rebuilding / reorganizing them.