In certain areas in my application I need data from several tables in the database (I have an application, the application has many attributes, each attribute has several definitions, and each definition has a value). I need the data from all these tables for an application. Should I use a view (one that would be rather large) or subqueries for selecting the records? In the case of subqueries is the optimizer able to work efficiently? I’m also interested if caching will work for subqueries.
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Views are typically expanded in place into subqueries, unless you explicitly mark the views as persisted by dropping a clustered index on them.