The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We discuss the design and implementation of the O2 Views object-oriented database view mechanism, which allows the redefinition of both the structure and the behavior of objects stored in a database. The data model extended with views is given and the functionalities of the prototype implementing it are presented. The paper focuses on the requirements for the implementation of an object-oriented view...