Yes, a view can be nested using a different view. This means that the expression defining one view can include another view as a subquery.
For example, suppose we have two views V1 and V2. The expression defining V1 includes a subquery that references V2. When we query V1, the database retrieves data from V2 and uses it to compute the result of V1.
It's important to note that nesting views can have performance implications, especially if the nested views are complex or involve large amounts of data. In some cases, it may be more efficient to write a single query that combines the logic of both views rather than nesting them.