How to: Create Clustered Indexes (Visual Database Tools)
In Microsoft SQL Server databases you can create a clustered index. In a clustered index, the physical order of the rows in the table is the same as the logical (indexed) order of the index key values. A table can contain only one clustered index.
To create a clustered index
In Object Explorer, right-click the table for which you want to create a clustered index and click Design.
The table opens in Table Designer.
From the Table Designer menu, click Indexes/Keys.
In the Indexes/Keys dialog box, click Add.
Select the new index in the Selected Primary/Unique Key or Index list.
In the grid, select Create as Clustered, and choose Yes from the drop-down list to the right of the property.
The index is created in the database when you save the table.