Which of the following symbol is used for optional one?
a) |
b) ||
c) o|
d) o||
An entity that contains some optional attributes is called……
a) weak entity
b) subtype entity
c) independent entity
d) dependent entity
The process of identifying more general entity types is known as….
a) generalization
b) strong entity
c) independent entity
d) dependent entity
The process of identifying more specific entity types is known as….
a) generalization
b) specialization
c) independent entity
d) dependent entity
Which of the following is example of generalization entity?
a) human
b) person
c) student
d) none of these
Which of the following is example of specialization entity?
a) human
b) person
c) student
d) both b & c
