DBMS - Generalization Aggregation - The ER Model has the power of expressing database entities in a conceptual hierarchical manner. As the hierarchy goes up, it generalizes the view of entities, and as we go deep in the hierarchy, it gives us the detail
Generalization, Specialization and Aggregation are the ways to represent special relationships between entities and attributes in ER Model in DBMS.
As a point query example Q1, user would filter data to retrieve possible patient's record designated by Age = 62 AND Zip Code = 44120 AND Gender = F. For sanitized release, Q1 can be expanded for Zip Code and Gender. For instance, Zip Code can be replaced with its value in the ...
procedure in a cloud environment, it is possible to obtain the risk values for any potentially floodable area with conditions and characteristics comparable to the city of Benevento (10 km2—more than 1500 buildings affected) in less than 2 h (with input data already loaded in the DBMS). Dur...