What to do if SQL Server index is not maintained?
If none of the specified operations are supported for an index, then that index is not maintained. 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.
How does SQL Server keep the usage statistics?
SQL Server keeps the information about the index usage statistics automatically in the system tables and flushes that data when the SQL Server service is restarted.
How to Group indexes in SQL server maintenance solution?
The IndexOptimize procedure runs the sys.dm_db_index_physical_stats function to obtain average fragmentation values for the indexes, and then it groups them in 3 categories:
Which is the maintenance solution for SQL Server?
IndexOptimize is the SQL Server Maintenance Solution’s stored procedure for rebuilding and reorganizing indexes and updating statistics. IndexOptimize is supported on SQL Server 2005, SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, SQL Server 2014, SQL Server 2016, SQL Server 2017, Azure SQL Database, and Azure SQL Database Managed Instance.
How to maintain Azure SQL indexes and statistics?
There are a lot of work that Azure SQL saves from you, and most of the users we meet seem to believe that maintain the database indexes and statistics is one the missions you can forget when you migrate to Azure SQL. Statistics objects, like in the box version of SQL have by default “Auto update” set to ON.
What do I need to know about SQL Server index?
This information includes the name of the table, on which the index is created, the name and type of that index, the size of the index, the number of seeks, scans, lookups and updates performs on the index and finally the last seeks, scans, lookups and updates date, as shown below: