2026-01-23
417 reads
Fragmentation
2025-09-17
1,697 reads
SQL Server Fragmentation Impact with Modern Hardware
Read this article to find out if you still need to worry about SQL Server index fragmentation with modern hardware.
2023-11-03
[Video] Fragmentation Explained in 20 Minutes at SQLBits
What does fragmentation mean? How does it happen? Can you fix it with fill factor? Should you rebuild your indexes to fix it?
2022-09-26
Index fragmentation on all databases
The script returns all the fragmented indexes on all databases on the instance you run it. Can be run on multiple instances in the same time using central management capability.
2021-07-12 (first published: 2021-07-06)
4,190 reads
Defrag All Indexes On a Database
Script to list out all fragmented indexes for a given database, with options to only view them, reorganize them, or rebuild them in one fell swoop.
2012-05-25 (first published: 2012-05-15)
3,263 reads
The Real World: Fragmented Disk and High PAGEIOLATCH Waits
This article decribes how defragementing a 900 GB drive assisted in addressing major performance issues on a reporting server.
2012-04-20
6,589 reads
No Significant Fragmentation? Look Closer…
If you are relying on using 'best-practice' percentage-based thresholds when you are creating an index maintenance plan for a SQL Server that checks the fragmentation in your pages, you may miss occasional 'edge' conditions on larger tables that will cause severe degradation in performance. It is worth being aware of patterns of data access in particular tables when judging the best threshold figure to use.
2012-03-14
3,229 reads
Analyze and Fix Index Fragmentation in SQL Server 2008
This article describes how an index gets fragmented and the steps which a DBA can take to fix index fragmentation
2008-12-11
2,876 reads
2008 Index Fragmentation Maintenance
Just a stab at automating index maintainenance in SQL Server 2008
2013-01-11 (first published: 2008-11-07)
2,735 reads
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Question of the Day
BIT_COUNT I
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 3;See possible answers