Alternatively, you can use various SQL Server management views and functions. For example: select S.name as [Schema], O.name as [Object], I.name as [Index], round(P.avg_fragmentation_in_percent, 1) as [Percentage Out-of-Order], round(100.0 - P.avg_page_space_used_in_percent, 1)...
and each index can have a different fragmentation percentage. Now, before making it appropriate or taking an index in maintenance, users have to find that threshold value from the database. The below T-SQL statement is an efficient way to find it with object details. ...
A low percentage for scan density is bad. A high percentage for logical scan fragmentation is bad. To defragment your index you need to use the DBCC DBREINDEX or DBCC INDEXDEFRAG commands. DBCC DBREINDEX allows you to rebuild all indexes at once, but is an offline operation so the tables c...
Understand that fragmentation(in SQL Server) is not introduction of free space or some kind of space between rows present in index. This is other myth which needs attention. Fragmentation is just mismatch between Logical ordering of Index keys and physical ordering of data at leaf level of ...
If the default threshold of 10 percent is kept, indexes that have an index fragmentation percentage below 10 percent , as determined during the Fragmentation Scan, aren't reorganized. Indexes with a fragmentation percent exceeding 10 percent are reorganized.Additional Information: For more information ...
page_count,database_id,avg_page_space_used_in_percent from sys.dm_db_index_physical_stats(DB_ID('PRINCE'),OBJECT_ID('xtprince'),1,NULL,'DETAILED') go dbcc extentinfo('prince','xtprince') From above output it is clear that now the avg_fragmentation_in_percentage is 0. So when you...
Alternatively, you can use various SQL Server management views and functions. For example: select S.name as [Schema], O.name as [Object], I.name as [Index], round(P.avg_fragmentation_in_percent, 1) as [Percentage Out-of-Order], round(100.0 - P.avg_page_space_used_in_percent, 1)...