In fact, if an index is UNUSABLE the truncate will actually mark it as USABLE by the very fact that it knows there are no rows. ALTER INDEX . Yes it looks like some smaller tables but. Master merging a large amount of data can create a long running transaction, delaying truncation of the transaction log during checkpoint. 737k 176 176 gold badges 1336 1336 silver badges 1461 1461 bronze badges. ALTER INDEX. any update on the old index will also get applied to the new index. WITH (ONLINE = ON) Drop the existing columnstore index and run the query again. Also, an interesting point is that only the leaf level (level=0) gets defrag'ed after doing an ALTER INDEX REORGANIZE - BOL makes this clear. REBUILD. REORGANIZE). ALTER INDEX. Increasing MAXDOP. None of these errors were written to the SQL logs. ]index optionsOptions: The options used with this command can be any combination of the. I suspect the reorganize is compacting the index after the rebuild and thus moving quite a bit of data around. REORGANIZE statement removes deleted rows, based on an internally defined policy, from the columnstore as an online operation. ----- This article - Optimize index maintenance to improve query performance and reduce resource consumption helps you decide when and how to perform index maintenance. Preuzmi Microsoft Edge Dodatne informacije o. In ONLINE mode the new index is built while the old index is accessible to reads and writes. Compressed rowgroups - Rowgroups are using columnstore compression. You could also refer another query which may be helpful to you. Or exclude the ALTER operation using WHERE clause ( [allow_page_locks] = 0) on these indexed tables. It preserves the index and constraint definitions. Because this is an online operation, the index is available while the statement is running. • ALTER INDEX REORGANIZE, But the user needs to use log space. TEST REORGANIZE WITH (COMPRESS_ALL_ROW_GROUPS = ON) With very large indexes, rebuilds take longer, generate more log, impact performance more while they’re running. This index design guide contains information on index architecture, and best practices to help you design effective indexes to meet. ALTER INDEX All ON tableName REORGANIZE; Rebuild or Reorganize SQL Index. This tip will explore two features to speed up SQL Server index and statistics maintenance. Name + ' SET (ALLOW_PAGE_LOCKS = ON)' As Command FROM sys. One of the blocking scenarios I find most interesting is related to online index rebuilds. To reduce the number of fragments, reorganize the full-text catalog by using the REORGANIZE option of the ALTER FULLTEXT CATALOGTransact-SQL statement. As you can see here, a Sch-M lock has a conflict with almost every locking. However, the actual values may vary from case to case. REBUILD to rebuild the in-row data of the heap, as well as all data of the indexes, and re-enable them. The name of an index-method-specific storage parameter. Open the Tables folder & expand it. ALTER INDEX All ON tableName REORGANIZE;ALTER INDEX PK_MyFragmentedIndex ON dbo. Check the new table size using sp_spaceused "tablename". Right-click the index that you want to rebuild online and select Properties. [Table_Name] REBUILD WITH (FILLFACTOR = 80) OR - by using. The only difference is that I replaced the WAITFOR command (used to wait for the tuple mover to kick in) with an ALTER INDEX REORGANIZE statement. Name IS NOT NULL. Prijeđite na Microsoft Edge, gdje vas čekaju najnovije značajke, sigurnosna ažuriranja i tehnička podrška. myTable REORGANIZE WITH (LOB_COMPACTION = ON)) which took around 5 hours to complete. Expand the Indexes folder. The ways I can think around this problems are: 1) set the database to simple recovery mode while you run the reorganize, but you said that isn't acceptableExample #. @LeeWalters shrink is done, and yes, due to disk issues, not possible to add drives, that's why, in addition, db is populated with blob data, so the question is more from the index fragmentation side. Index Rebuild vs Index Reorganize. Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance. This clause is valid only for domain indexes in a top-level ALTER INDEX statement and in the rebuild_clause. Right-click the index and choose rebuild and then reorganize. First off: ‘Reorganize’ and ‘Rebuild’ are two different operations that each reduce fragmentation in an index. ALTER INDEX REORGANIZE. In previous versions of SQL Server, you can use CREATE CLUSTERED COLUMNSTORE INDEX with DROP_EXISTING=ON, or ALTER INDEX (Transact-SQL) and the REBUILD option. This task uses the ALTER INDEX REORGANIZE statement with. ALTER INDEX REORGANIZE is used for rebuilding or reorganizing indexes, but it does not maximize columnstore compression. 此示例将在所有分区上运行 REORGANIZE。 ALTER INDEX cci_FactInternetSales2 ON FactInternetSales2 REORGANIZE; 此示例将在特定分区上运行 REORGANIZE。-- REORGANIZE a specific partition ALTER INDEX cci_FactInternetSales2 ON FactInternetSales2 REORGANIZE PARTITION = 0; C. fragment_count : Number of fragments in an index (Continuous Pages) - Lower value is better 3. But commit your whole transaction before reorganize. Index REORGANIZE operations are an excellent way to combine undersized rowgroups, assuming they do not suffer from dictionary size limitations. To reorganize index SQL Server, right-click it & choose Reorganize. You can reorganize an index-organized table or an index-organized table partition (to recover space or improve performance) without rebuilding its secondary indexes. Nota En SQL Server 2012 (11. I need to change the default value for the ONLINE option of almost all of the indexes to ON so that rebuilding an indexes with this script: ALTER INDEX [Index1]|ALL ON [Table1] REBUILD; will do the same as: ALTER INDEX [Index1]|ALL ON [Table1] REBUILD WITH (ONLINE = ON); I have to do it without recreating the indexes. Select Allow online DML processing, and then select True from the list. Your replica/ mirrors may fall behind. Session 56: the query attempting to look for the transaction locks, but getting stuck in the object_name() function call: SELECT tl. table_options signifies table options of the kind that can be used in the CREATE TABLE statement, such as ENGINE, AUTO_INCREMENT, AVG_ROW_LENGTH, MAX_ROWS, ROW_FORMAT, or TABLESPACE. I tried running both commands separately too and still have fragmentation. Dedicated SQL pool offers several indexing options including clustered columnstore indexes, clustered indexes and nonclustered indexes, and a non-index option also known as heap. The code first adds 1. AFAIK, In the Alter index statement if we use MAXdop option it is only specific for that index operation and not applicable whenever the index is used by a query. This job needs to be scheduled and ran on a weekly basis due to large data. 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. Basically, an index rebuild copies the index to another place. I don't agree with Kin this is a knee response that will be a least help. So your db need to have: data space to accomodate your new index, data space to make a sort since you used SORT_IN_TEMPDB = OFF, and it needs log to be large. If the response is helpful, please click "Accept Answer" and upvote it. Select the "RECLAIM_TS" tablespace by clicking the radio button. The code first adds 1. indexes) [allow_page_locks] is SET to 0. [GerardStatsTest] WITH RESAMPLE, INCREMENTAL=ON; This will make all of the statistics incremental statistics. REBUILD WITH (FILLFACTOR = 90); ALTER INDEX AK_SalesOrderHeader_SalesOrderNumber ON Sales. Here are a couple of examples. Next, let us build only the clustered index and see the output of all the indexes. The higher the degrees of parallelism, the greater the memory. [dbo]. Although this option increases the amount of temporary disk space that is used to create an index, the. This means you will need less free space in your user database during an index rebuild operation and more free space in tempdb. For a table with an ordered clustered columnstore index, ALTER INDEX REORGANIZE does not re-sort the data. . Regards EchoALTER INDEX is in fact just an alias for the forms of ALTER TABLE that apply to indexes. 2: Syntax: ALTER INDEX ALL ON table_name REBUILD: Syntax: ALTER INDEX ALL ON table_name REORGANIZE: 3: Index should be rebuild when index fragmentation is great than 30% Index should be reorganized when index fragmentation is between 10% to. 1 Answer. This is a simple problem to solve. You can do maintenance in phases, where each maintenance phase covers a subset of. The effect delivered is that REORGANIZE "conditions" a whole lot of indexes in such a fashion as to perpetuate page splits, which is both logical and physical (page density) fragmentation at its. alter index all on dbo. In the infrequent cases where you do need to reorganize or re-build index, consider these: Run index maintenance during off peak period. If you truncate a table, all indexes will be USABLE but empty. Disabling an index prevents user access to the index, and for clustered indexes, to the underlying table data. RESUMABLE = ON means you can pause the index. However, the REBUILD still needs to take a lock for a moment to swap the old index for the new index. The DBCC REINDEX command was deprecated in a previous version so it is not as robust as the new ALTER INDEX command is today. x), use ALTER INDEX. Because the data_compression option is not retained when scripting out the Index create statement. The ALTER INDEX statement in SQL Server (see docs) is available to alter certain properties (storage properties etc. dm_db_index_physical_stats. PS C:> Invoke-DbaDbShrink -SqlInstance sql2014 -Database AdventureWorks2014 -PercentFreeSpace 50 -FileType Data -StepSize 25MB. Create a maintenance plan. ドメイン索引を変更する場合は、索引の索引タイプに対してexecute. The operation can also be interrupted without losing work already completed. DROP INDEX when you are. To rebuild an index means to create anew one, then drop the old one. Rebuild INDEX sort in tempdb. The second part is that you can not alter any indexes, this means, that you should DROP the old index and. This will rebuild/reorganize indexes based on configurable thresholds and options. _depth, index_level). Rebuild Indexes. The REORGANIZE operation is always performed online. Reorganizing an index uses minimal system resources. References: QUESTION 39 You administer a Microsoft SQL Server database named Sales. SalesOrderHeader SET ( STATISTICS_NORECOMPUTE = ON, IGNORE_DUP_KEY = ON, ALLOW_PAGE_LOCKS = ON ) ; To modify index columns To add, remove, or change the position of an index column, you must drop and recreate the index. Ticket'). The following index operations require no additional disk space: ALTER INDEX REORGANIZE; however, log space is required. The per-row group state of the delete bitmap can be seen in the sys. If you are satisfied with the unused space of table, then check the unused space of the database using the same command without specifying a table. Consider Ola Halengren's SQL Server Maintenance Solution for Azure SQL Database index maintenance as well as Managed Instance and on-prem. The Query Optimizer updates statistics when you rebuild an index on a table or view with ALTER INDEX REBUILD or DBCC DBREINDEX, however this statistics update is a byproduct of re-creating the index. Expand the Tables folder. Partitions can be rebuilt individually. PARTITION Only rebuild/reorganize one partition of the index. Reindex WSUS Database using T-SQL Script. On the other hand, if the reorganize operation fails, it will stop where it left off, without rolling back the reorganize operation. To re-sort data, use ALTER INDEX REBUILD. To "enable", SET to 1. Ok i am confused, i was replacing my "alter index reorganize" part with the "execution dbo. The database has READ_COMMITTED_SNAPSHOT enabled. Rebuilding indexes online does not affect to table base. You need the name to be able to drop the index. 例えば、10 % 以上 30 % 未満であれば再構成 (Reorganize)、 30% 以上であれば再構築 (Rebuild) するとすれば、. Instead, an index rebuild must be performed. Under Select a page, select Options. Index_Name REORGANIZE Umarım sizler için faydalı bir döküman olmuştur. Avoid using this feature in new development work" and "Use ALTER INDEX…REORGANIZE to reorder the leaf-level pages of the index in a logical order", and then it proceeds to use the old code in. Sorted by: 1. ALTER INDEX cindex ON. If index is range-partitioned or hash-partitioned, then Oracle Database deallocates unused space from each index partition. ALTER INDEX [myIndex] ON [dbo]. -- Create a database CREATE DATABASE [ columnstore ]; GO -- Create a rowstore staging table CREATE TABLE [ staging ] (. 3) Load data. Of course, they are head blockers (because it is Standard Edition, each ALTER INDEX command runs with ONLINE=OFF). For descriptions of all table options, see Section 13. REORGANIZE command (more details on this command and its usage are given below). So your db need to have: data space to accomodate your new index, data space to make a sort since you used SORT_IN_TEMPDB = OFF, and it needs log to be large. But, fill factor is defined in index properties, and is not overriden in index rebuild settings, so I believe both operations should respect the value. ALTER INDEX index1 ON dbo. Each row is 50 bytes long. Maybe I should explain. (In fact if you are alter any indexes, the data stored in the index will be rearranged to fit to the new definition). Also when I try to reorganize or rebuild manually, using one of the following commands: use DBNAME. Recreate the specified index. Resolve SQL Server Database Index Reorganization Page Level Locking Problem. . Whether you rebuild or reorganize indexes depends on the following guidelines: avg_fragmentation_in_percent value Corrective statement. Now, let’s perform the REORGANIZE command on the index using the below T-SQL statement and look at the page allocation again. 이 예제에서는 ALTER INDEX REORGANIZE 명령의 작동 방식을 보여 줍니다. In short, the new Merge functionality in INDEX REORGANIZE simplifies Columnstore index maintenance significantly and other DMV’s add visibility into the internals of columnar indexes. You need to assemble the SQL prior to calling SP_ExecuteSQL, i. This browser is no longer supported. 2 – Two minutes later, a background task is blocked by the index reorganize, waiting to acquire a schema modification lock to update the statistics for the same index. Here is the syntax for the same. ALTER INDEX ON REORGANIZE . Select Maximum degree of parallelism, and then enter some value between 1 and 64. December 3, 2010 at 12:21 pm. When I detect the index has the option turned off, I perform the following steps:ALTER INDEX REORGANIZE; however, log space is required. indexes system view, filtering the object_id column on the OBJECT_ID('dim. The second part of this tip is intended to reduce the duration for update statistics as it pertains to both. ALTER INDEX IndexName ON TableName REBUILD; It is a very simple syntax. The final post in this series will cover parallelism and the UPDATE STATISTICS command, and if. b) ALTER INDEX {indexname} ON {tablename} DISABLE; 2) Truncate Table. Update COLUMNSTORE index in DB transaction. Document table. WITH FULLSCAN. 1. You can still run the index reorg/rebuild as part of your maintenance scripts. Let’s use DBCC SHRINKDATABASE to reclaim the empty space. Here are a couple of examples. To learn more about index rebuild and reorganize operations, review this tip. ¿ Reorganize fragmented indexes. If you need more tempdb space, scale up the pool. This results in a short reorganization maintenance window. 1) Disable all NC indexes. Parallel index execution and the MAXDOP index option apply to the. The index can be reorganized using ALTER INDEX REORGANIZE T-SQL command. If index is a local index. In this article. The first part of this tip focuses on SQL Server Enterprise Edition to reduce the duration for index maintenance for off-line rebuilds. If the index has height greater than four, rebuild the index. The fix is to update all rebuild index scripts. While that might allow ALTER INDEX REORGANIZE to run, it could also introduce any number of other problems into the environment that are worse than not being able to simply reorganize an index. Once that is done, it executes the ALTER INDEX command to reorganize the index. An index reorganize holds an intent-exclusive table lock throughout the operation, which will only block shared, exclusive, and schema-modification table locks. For a table with an ordered clustered columnstore index, ALTER INDEX REORGANIZE does not re-sort the data. Example: 3. SQL Server 2016 (13. and Rebuild if the fragmentation is above 30%. On this MSDN Page it says if you should reorganize or rebuild based on the amount of fragmentation:. One of the major reasons I wrote DBCC INDEXDEFRAG for SQL Server 2000 was as an online alternative to DBCC DBREINDEX. As the max possible rows in a row. -- Create a database CREATE DATABASE [ columnstore ]; GO -- Create a rowstore staging table CREATE TABLE [ staging ] ( AccountKey int NOT. Document table. Rebuild the index. Tip For general guidance regarding index fragmentation, when fragmentation is between 5% and 30%, reorganize the index. ALTER INDEX CCI_TEST on DBO. Select Allow online DML processing, and choose True from the list, and then click OK. Everything I say below applies to row. There was formerly an ALTER INDEX OWNER variant, but this is now ignored (with a warning). From another point of view. tablespace_name. 1. REORGANIZE Is on ON LINE operation in ALL flavors of SQL Server. Let’s move on to creating the Reorganize Index task via the Maintenance Plans and then Update Statistics task. Right-click the index you want to reorganize and select Rebuild. In other words, the progress of index reorganization cannot be obtained before SQL Server 2008. 索引が自分のスキーマ内にある必要があります。自分のスキーマ内にない場合は、alter any indexシステム権限が必要です。 monitoring usage句を実行する場合は、索引は自分のスキーマ内に存在する必要があります。. [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. Applies to: SQL Server 2012 (11. The stored procedure is using dynamic SQL to generate the alter index scripts. To reduce the number of fragments, reorganize the full-text catalog by using the REORGANIZE option of the ALTER FULLTEXT CATALOGTransact-SQL statement. Hi, The widely used thresholds are: Reorganize if fragmentation is between 10-30%. and even. delete of a row which was not yet copied). Team, My Rebuild,Reorganize index job has been failing because of the following error,it is scheduled to be executed in only one db and the db is in simple mode. Ini membuat tabel yang memiliki beberapa grup baris, lalu menunjukkan cara REORGANIZE menggabungkan grup baris. I don't agree with Kin this is a knee response that will be a least help. If you want to use MAXDOP for few indexes, it is possible to use them with the ALTER INDEX command. ALTER INDEX All ON tableName REBUILD; This drops the index and recreates it, removing fragementation, reclaims disk space and reorders index pages. Select Options under Select a page. MySQL "plays it safe". REBUILD (to remove forwarding pointerns in a heap) and ALTER INDEX. Expand the table on which you want to reorganize an index. Downtime required. -- Test 2: ALTER INDEX REBUILD-- Rebuliding should work fine ALTER INDEX [PK_TableName] ON [dbo]. You can also change this threshold via parameters. This ALTER FULLTEXT INDEX statement starts a full population, which is the default behavior of the SET SEARCH PROPERTY LIST clause. Just for extra noise, Azure Backup is taking. Therefore you need to identify those tables/indexes & you need to do the re. Therefore, you do not need to update statistics after performing ALTER INDEX REBUILD, DBCC DBREINDEX, DBCC INDEXDEFRAG, or ALTER INDEX REORGANIZE operations. SQL Server ALTER INDEX Syntax. Expand the Indexes folder. REORGANIZE ), so that’s the topic for this post. The script below allows you to rebuild indexes for all databases and all tables within a database. We have shrunk the files, rebuild indexes using the offline option on those tables, but still unable to see any free space that is released. REORGANIZE index. In this article. set @SQL = 'alter index ' + QuoteName ( @IndexName ) + ' on ' + QuoteName ( @TableName ) + ' rebuild';. 3) The third step is to create the table. We can however get it back to a compressed segment by issuing the following command we saw previously. Rename the task to Index Maintenance. REBUILD) These numbers are made up. column_store_dictionaries returns no rows at all. 14. Expand the Indexes folder. This increases the value in avg_space_used_in_percent. ALTER INDEX ALL ON [tablename] REORGANIZE Rebuild should be used when the fragmentation index is greater than 30% and reorganization option should be used when the fragmentation index is between 5. It had been holding exclusive locks for the duration of the ALTER INDEX statement execution. Disabling indexes. Rename the task to Index. DROP INDEX when you are dropping a nonclustered index. The problem is that this ALTER INDEX blocks the web server SPIDs & the whole things locks up for an hour & an admin has to go in & kill the index spid. For the first question: Yes, when you change the CLUSTERED INDEX, it means that the data will be rearranged. For more information, see Columnstore index rowgroup. However, ALTER TABLE ignores DATA. Our Production instance is running SQL Server 2014. It's not documented to have a particular deadlock priority, and it does make data changes. Click OK. Follow edited Jul 26, 2022 at 15:50. Acest browser nu mai este acceptat. Enterprise Manager gives us a nice image of the contents of the tablespace by doing the following: Click on the "Server" tab. Disabling an index prevents user access to the index, and for clustered indexes, to the underlying table data. (You could even go with 0% if you want. Descărcați Microsoft Edge Mai multe informații. Nadogradite na Microsoft Edge biste iskoristili najnovije funkcije, bezbednosne ispravke i tehničku podršku. After that I ended. ALTER INDEX Index_Name ON Sales. ¿ Indexes should be checked regularly if they have more leaf blocks than the table. Microsoft describes in the link below how you can check the fragmentation of indices on tables in MSSQL and then how you can re-organize (re-build) the indices to reduce the fragmentation percentage:Rebuild is an ALTER command so even if the job is running the step is trying to execute the plan which has that command in the logic and failing. new_name. Microsoft recommends Index Rebuild operation to defrag indexes if the fragmentation level of your index is greater. 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. Expand the Indexes node. x) and later versions. REBUILD. Indexes with small number of pages (<1000) will usually. [TableName] REORGANIZE WITH (COMPRESS_ALL_ROW_GROUPS = ON) The transaction can take a long time. Reorganizing an index does not update associate statistics. BOL: " Reorganize and Rebuild Indexes This topic describes how to reorganize or rebuild a fragmented index in SQL Server 2012 by using SQL Server Management Studio or Transact-SQL. Alter table move - The alter table move command moves rows down into un-used space and adjusts the HWM but does not adjust the segments extents, and the table size remains the same. CommandExecute, Line 163 [Batch Start Line 0] Msg 155, 'RESUMABLE' is not a recognized ALTER INDEX REORGANIZE option. For example, if a given index is used mainly for scan. (I sometimes find that people are doing both against every index in a maintenance plan. Reorganize only requires 8KB of additional space in the database. It's better to do reorg on Nightly. Memory requirements for partitioned index operations that require sorting can be greater if the Query Optimizer applies degrees of parallelism to the build operation. [TBLTest] REBUILD WITH (MAXDOP = 2) This statement executes successfully without errors but again, when I check the properties of the index it's still at 0. It. See this blog post for details. Use ALTER INDEX REORGANIZE, the replacement for DBCC INDEXDEFRAG, to reorder the leaf level pages of the index in a logical order. Right-click on the index and select Rebuild. Hi Team, I am looking for a script, which can provide defrag status and generate rebuild and reorganize scripts ALTER statement in Azure SQL DB. CREATE UNIQUE NONCLUSTERED INDEX (indexname) ON dbo. allocation_units. To re-sort data, use ALTER INDEX REBUILD. Rebuilding indexes is done using the following statement. TEST_INDX DISABLE ; alter index IX1 on DBO. Points: 90153. Syntax ALTER INDEX {index | ALL} ON object DISABLE [;]. Share. Reorganize Doesn`t Create A New Index It is again a short demo which shows that Reorganize doesn`t create a new Index, In this demo we will reorganize the index and we will check does the Index ObjectID and PageIDs changed in comparewith the last demo. For an [!INCLUDEssazuresynapse-md] table with an ordered clustered columnstore index, ALTER INDEX REORGANIZE does not re-sort the data. From the alter index manual page: WITH ( LOB_COMPACTION = { ON | OFF } ) Specifies that all pages that contain large object (LOB) data are compacted. Because there are so many of them running at a time (each in a different database), and they are going parallel (which ties up even more workers), everything piles up. To address fragmentation, you can rebuild or reorganize indexes regularly. . The advantage of this statement should let users query full-text indexes while running, but there is a price: depending on the amount of data that has to be treated, it can take some time to complete and hence introduce some undesired events. They work differently toward the same end. The documentation for alter index, for example, shows that it accepts an index_name, not an expression that might evaluate to an index name. x), REORGANIZE solo se usa para comprimir los grupos de filas CLOSED en el almacén. REORGANIZE instead of REBUILD. partition_number The number of an existing index partition to rebuild/reorganize. Columnstore supports index defragmentation by removing deleted rows without the need to explicitly rebuild the index. These values provide a rough guideline for determining the point at which you should switch between ALTER INDEX REORGANIZE and ALTER INDEX REBUILD. Right-click the index that you want to modify and then click Properties. [Item] REORGANIZE . Syntax: ALTER INDEX [schema. 4) You cannot change the value of the PCTFREE parameter for the index as a whole (ALTER INDEX). Faceți upgrade la Microsoft Edge pentru a profita de cele mai noi funcții, actualizări de securitate și asistență tehnică. Designing the SQL Server Reorganize Index Task Perform ALTER INDEX ALL . All other index DDL operations require additional temporary disk space to use during the operation, and permanent disk space to store the. VeryImportantTable REBUILD; GO -- If you want to rebuild all the indexes on a table, try this code. The length of time the rebuild takes is related to the size of the index, not the amount of fragmentation in it. [TableName] REBUILD PARTITION =. Also, some tables/indexes will hardly be fragmented. USE myDb GO EXEC. Starting with SQL Server 2016 (13. Index types. [FooDetail] REORGANIZE WITH (LOB_COMPACTION = ON). New ALTER INDEX UPDATE BLOCK REFERENCES syntax fixes the invalid physical guesses without reconstructing. Rebuilding an index drops and re-creates the index. DECLARE @Sql NVARCHAR (5000) = N'ALTER INDEX ' + @indexName + N' ON ' + @tableName + N' REORGANIZE'; EXEC sp_executesql @Sql.