Introduction to Data Abstraction in DBMS
- This is the highest level and the closest to the end-user. It describes only a part of the entire database, tailored for a specific user group or application. For example, a banking app might provide a 'view' showing only your recent transactions, hiding all other account details and other customers' information. A university portal might show a student their enrolled courses and grades, but not the financial details of the faculty. This simplifies interaction and enhances security. Multiple 'views' can exist on top of the same logical structure. This layered approach is a cornerstone of effective data abstraction in dbms.
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