Is querying on views slower than doing one query?

Question

Will Mssql be even fast when I query on a view opposed to one query?

example

When I have this view:

create view ViewInvoicesWithCustomersNam         


        

Answer 1

Both should take almost same time.

View here is just representation for query to be executed for data whenever View is accessed.

There is another type of View i.e. Materialized View. This type of view has physical existance as Tables. And query (passed during view creation) is not executed while accessing this type of view. acessing from this type of view should be faster.