Non-Clustered Index on a Clustered Index column improves performance?

Question

In SQL Server 2005, the query analyzer has told me many times to create a non-clustered index on a primary ID column of a table which already has a clustered index. After follo

Answer 1

A clustered index will generally be faster, but you can only have 1 clustered index. So if the table already has a clustered index on a different column, then a non-clustered index is the best you can do.