State the difference between materialized view and view.

Views are created by combining data from different tables. As a result, a view has no data of its own.

The Materialized view, which is usually used in data warehousing, has data. Decisions can be made based on this data, calculations can be performed, etc. By using queries, the data is calculated beforehand and stored.

Creating a view does not store data in the database. The data is created when a query is fired on the view. Whereas, data of a materialized view is stored.