• -- force usage of the view

    SELECT Column1, Column2, ... FROM Table1, View1

    WITH (NOEXPAND) WHERE ...

    -- force usage of the base tables

    SELECT Column1, Column2, ... FROM Table1, View1

    WHERE ...

    OPTION (EXPAND VIEWS)

    Source: http://technet.microsoft.com/en-us/library/cc917715.aspx

    “Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

    For fast, accurate and documented assistance in answering your questions, please read this article.
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    Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden