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Is it possible to create an indexed view with SQL Server 2008 which selects from another indexed view?
create view V1 as (select 1 as abc)
create view V2 as (select abc from V1 group by abc)
I think the answer is “no, it is not possible”.
From Microsoft TechNet Site, in an article about performance:
Q. I have a view defined on top of another view. SQL Server won’t let me index the top-level view. What can I do?
A. Consider expanding the definition of the nested view by hand into the top-level view, and then indexing it, indexing the innermost view, or not indexing the view.
Good Luck.