3. Physical Level
- Refers to the storage of data in physical space.
- E.g. memory devices or storage devices.
Physical Storage of Data in
Hard Drives
Physical Storage of Data in
files
4. Conceptual Level
- Refers to the conceptual/logical relationship between entities and data.
- E.g. the relationship between various
entities of a school like students, teachers,
classes, and subjects is provided by the
Conceptual Level.
Inter-related database tables
5. View Level
- Refers to the view of data provided to general users by the application
programmer.
- E.g. product listing fetched from database