Set the lower limit, as a percentage, for medium fragmentation. IndexOptimize uses the SQL Server ALTER INDEX command: REBUILD WITH (ONLINE = ON) to rebuild indexes online, REBUILD WITH (ONLINE = OFF) to rebuild indexes offline, and REORGANIZE to reorganize indexes. This is the default for a high-fragmented index. Specify index maintenance operations to be performed on a high-fragmented index. This is the default for a medium-fragmented index.
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Rebuild index offline if reorganizing and online rebuilding are not supported on an index. Rebuild index online if reorganizing is not supported on an index. Specify index maintenance operations to be performed on a medium-fragmented index. If none of the specified operations are supported for an index, then that index is not maintained. These operations are prioritized from left to right: If the first operation is supported for the index, then that operation is used if the first operation is not supported, then the second operation is used (if supported), and so on. Because of this, you can specify multiple index-maintenance operations for each fragmentation group. This is the default for a low-fragmented index.Īn online index rebuild or an index reorganization is not always possible. Rebuild index offline if reorganizing and online rebuilding are not supported on an index.ĭo not perform index maintenance.
INDEX_REORGANIZE,INDEX_REBUILD_ONLINE,INDEX_REBUILD_OFFLINE Reorganize index if online rebuilding is not supported on an index. Rebuild index offline if online rebuilding is not supported on an index. INDEX_REBUILD_ONLINE,INDEX_REBUILD_OFFLINE Specify index maintenance operations to be performed on a low-fragmented index.
USER_DATABASES, -AVAILABILITY_GROUP_DATABASESĪll user databases that are not in availability groupsĪll databases that have “Db” in the name, except Db1Īll databases that do not have “Db” in the name ValueĪll system databases (master, msdb, and model) All of these operations can be combined by using the comma (,). The hyphen character (-) is used to exclude databases, and the percent character (%) is used for wildcard selection. The keywords SYSTEM_DATABASES, USER_DATABASES, ALL_DATABASES, and AVAILABILITY_GROUP_DATABASES are supported. The SQL Server Maintenance Solution is free. The SQL Server Maintenance Solution is available on GitHub.
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You can also download the objects as separate scripts. This script creates all the objects and jobs that you need. Downloadĭownload MaintenanceSolution.sql. 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 Azure SQL Managed Instance. IndexOptimize is the SQL Server Maintenance Solution’s stored procedure for rebuilding and reorganizing indexes and updating statistics. RSS feed for comments on this post.SQL Server Index and Statistics Maintenance As it turns out, you can't insert an xml value into the middle of another xml value until SQL Server 2008.įor those using SQL 2005, then I've left the workaround as an exercise for the reader.Ĭomment by Michael J. "XQuery: SQL type 'xml' is not supported in XQuery" Nice, however, the script produces an error… I've updated the script.Ĭomment by Michael J. Update: The original blog post had a script where xml literals were interpreted as html. I could have also used more appropriate locks (like key locks, rid locks, table locks etc…) but I thought unknown lock suited my purposes just fine.Ĭomment by Michael J. You may notice that I use "unknown lock" for the resources in the graph. And don’t forget to reference ~\Tools\Binn\VSShell\Common7\IDE\Ĭomment by Michael J.
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If you’re actually interested in doing something like this in a windows forms application, you should look at .Deadlock found at ~\Tools\Binn\VSShell\Common7\IDE\sqlmgmt.dll. I also wanted to provide something where I could “show my work”. In fact, I thought about making this a project on. This much processing is best done in an application layer.
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