A database view is essentially a saved query. It acts like a table but does not contain its own data. When you query a view, the database executes the underlying query to retrieve the data from the base tables. - Virtual Nature Views are virtual tables, meaning they do not store data. - Query-Based They are defined by a SQL query that selects data from one or more base tables. - Simplification Views can simplify complex database structures and queries for users. - Security They can be used to restrict access to certain rows or columns of a table.