When it comes to optimizing the performance of your SQL Server database, one important concept to understand is the fill factor. The fill factor setting determines how much empty space is left on each index page to accommodate new rows that are inserted into the table.

By default, SQL Server has a fill factor of 0, which is equivalent to 100. This means that the leaf level of each index page is completely filled, leaving no empty space. However, this may not always be the optimal setting for your database.

The ideal value for the fill factor depends on the type of index and the structure of your table. If you have an incremental identity column with a clustered index, it is recommended to keep the fill factor at either 0 or 100. This ensures that new rows are inserted efficiently without causing page splits.

On the other hand, for indexes and tables without incremental identity columns, it is advisable to have a lower fill factor. This allows for some empty space on each index page, reducing the likelihood of page splits and improving overall database performance.

To change the fill factor setting, there are two different methods you can use:

Method 1: SQL Server Management Studio

1. Right-click on the server property in SQL Server Management Studio.

2. In the pop-up window, navigate to the “Fill Factor” setting.

3. Change the value to your desired fill factor percentage.

4. Click “OK” to save the changes.

Method 2: T-SQL Script

You can also change the fill factor setting using a T-SQL script. Here is an example:

EXEC sys.sp_configure 'show advanced options', '1'
RECONFIGURE WITH OVERRIDE
GO
EXEC sys.sp_configure 'fill factor (%)', '90'
GO
RECONFIGURE WITH OVERRIDE
GO
EXEC sys.sp_configure 'show advanced options', '0'
RECONFIGURE WITH OVERRIDE
GO

This script enables advanced options, sets the fill factor to 90, and then disables advanced options again. Make sure to replace ’90’ with your desired fill factor percentage.

Understanding and optimizing the fill factor setting can greatly improve the performance of your SQL Server database. If you need further assistance, you can also refer to the video tutorial provided.