Entity Farmework Articles

Difference Between Strong and Weak Entity

AmitDiwan

Updated on 15-Apr-2021 443 Views

In this post, we will understand the difference between strong entity and weak entity −Strong EntityIt has primary key.It doesn’t depend on any other entity.It can be represented using a single rectangle.The relationship between two strong entities can be represented using a single diamond.It can either have total participation or no participation.Weak EntityA weak entity has a partial discriminator key.It depends on the strong entity.It can be represented using a double rectangle.The relationship between a strong and a weak entity can be represented using a double diamond.They always have total participation.