engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) DBMS Introduction and ER Model ER Model
Which one of the following is used to represent the supporting many-one relationships of a weak entity set in an entity-relationship diagram?
1
Diamonds with double/bold border
2
Rectangles with double/bold border
3
Ovals with double/bold border
4
Ovals that contain underlined identifiers