What is View?

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A simple view can be thought of as a subset of a table. It can be used for retrieving data, as
well as updating or deleting rows. Rows updated or deleted in the view are updated or
deleted in the table the view was created with. It should also be noted that as data in the
original table changes, so does data in the view, as views are the way to look at part of the
original table. The results of using a view are not permanently stored in the database. The
data accessed through a view is actually constructed using standard T-SQL select command
and can come from one to many different base tables or even other views.