Recent questions tagged er-diagram

Specialization process does not allowto define a set a sub classes of an entity type.to establish additional specific attributes with each subclass.to define a generalize...

Consider an $\text{ER}$ model with the entities $\text{E1}$ ( $\mathrm{A}_{11}, \mathrm{~A}_{12}, \mathrm{~A}_{13}$ ) and $\text{E2}$ ( $\mathrm{A}_{21}, \mathrm{~A}_{22}...

What is the minimum number of tables for a BINARY RELATIONSHIP WITH ATTRIBUTES for the follwoing cases:Case 1: One-to-One relationship between two entities and partial pa...

How many of the follwoing are TRUE?$\text{ER}$ diagrams are used to model the physical schema of a database.An entity set $\text{E}$ can be associated with a relationship...