An entity set that does not have sufficient attributes to form a primary key is termed a

Related MCQs

• There are similarities between the instructor entity set and the secretary entity set in the sense that they have several attributes that are conceptually the same across the two entity sets: namely, the identifier, name, and salary attributes. This process is called
• An entity set that does not have sufficient attributes to form a primary key is termed a __________
• If an entity set is a lower-level entity set in more than one ISA relationship, then the entity set has
• An entity in A is associated with at most one entity in B, and an entity in B is associated with at most one entity in A.This is called as
• When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):
• When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):
• An entity in A is associated with at most one entity in B. An entity in B, however, can be associated with any number (zero or more) of entities in A.
• A relation is said to be in 3 NF if (i) it is in 2 NF (ii) non-key attributes are independent of one another (iii) key attribute is not dependent on part of a composite key (iv) has no multi-valued dependency
• For a weak entity set to be meaningful, it must be associated with another entity set, called the
• For a weak entity set to be meaningful, it must be associated with another entity set, called the