Card 1 of 21
In OCR ERD notation, what does a rectangle represent?
A
An entity.
B
An instance.
C
A relationship.
D
An attribute.
Card 1 of 21
Card 1 of 21
In OCR ERD notation, what does a rectangle represent?
An entity.
An instance.
A relationship.
An attribute.
Card 1 of 21