3. In the case of M:N cardinality, a descriptive attributes cannot be moved from the relationship to any of the participating entities.• True• False

The descriptive property possessed by each entity set is

The number of entities to which another entity can be associated via a relationship set is expressed as :Marks : 1Negative Marks : 0Answer hereEntityCardinalitySchemaAttributes

The number of entities to which another entity can be associated via a relationship set is expressed as :

In an Entity-Relationship Diagram “Diamonds” representsSelect one:a. Relationship setsb. Weak Entityc. Tabled. Attributes

Let M and N be two entities in an E-R diagram with simple single value attributes. R1 and R2 are two relationship between M and N, where as R1 is one-to-many and R2 is many-to-many. The minimum number of tables required to represent M, N, R1 and R2 in the relational model are _______.