Re: Design question: Nested views and functions? On Mon, 7 Mar 2005 23:11:06 +0000 (UTC), Erland Sommarskog
<esquel@sommarskog.se> wrote:
....
>One reason I'm a little skeptic to this approach, is that you develop
>a set of views to use, programmers tend to choice the most complex and
>versatile view, even if they need only one or two values from it. This
>can bring in tables to the query that do not belong there, giving quite
>an undesired overhead.
>
That brings to mind a useful optimization idea. What if SQL Server could
ignore M-1 outer joins when the results from the secondary table are not used
ore returned? Thus, if we SELECT a subset of fields from a view, unnecessary
parts of the view query could be skipped. |