You can save disk space by storing a view definition, which stores only the instructions for where to find the data and how it is formatted, not the actual data. Views can ensure that the input data sets are always current because data is derived from views at execution time. Since views can select data from many sources, once a view is created, it can provide prepackaged information to the information community without the need for additional programming.
Views can reduce the impact of data design changes on users.
For example, you can change a query that is stored in a view without changing the characteristics of the view's result. The following figure shows native and interface SAS data views and their relationship to SAS data files. All rights reserved.