>>Hi,
>>
>>a system I have has a table called Transactions, then a view based on that called viewTransactions and then another view based on the first view called viewTopTransactions.
>>
>>Should I create indexes on the underlying table and that will speed up queries against the views? Or should I create indexes on the views? or should I index both table and views?
>>
>>The queries are like this:
>>
>>SELECT DISTINCT [PNRStatus] FROM [viewTransactions] ORDER BY [PNRStatus]
>
>View from a view is rarely a good idea.
>
>Check this blog post
>
>http://blogs.lessthandot.com/index.php/datamgmt/dbprogramming/t-sql-wednesday-21-t/

Thanks, good to know, However I am just trying to improve things with as little adjustment to the system as possible. If necessary I will change the views but I am really interested in the answer to the question.