Why View don't need space to store in a database?

Answer 1

A view is created based on sql queries, meaning that each time you want to open a view, the data is fetched using the queries. So, basically, the data is in the underlying tables, which are used to generate the view.

Answer 2

data of view is stored in ram, you can say that a select statement is view in itself

Answer 3

views a stored on one of the system databases, not the database we're working with.