Which is proper subset designed to support ‘views’ belonging to different classes of users in order to hid or protect information:

🎲 Try a Random Question  |  Total Questions in Quiz: 200  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
Database Management System Basics — practice the complete quiz, review flashcards, or try a random question.


Which is proper subset designed to support ‘views’ belonging to different classes of users in order to hid or protect information: