Question

What is difference between total and partial participation of relation

Answer 1

Explanation:

Attributes are the properties which define the entity type. For example, Roll_No, Name, DOB, Age, Address, Mobile_No are the attributes which defines entity type Student.

In ER diagram, attribute is represented by an oval.

Answer 2

Answer:

Total participation means mininum no. Of relationships every entity of a Entity type involved in is greater than 0. OR Simply put, every entity of the corresponding entity type participates in the relationship. While, in Partial participation, there may be at least one entity not participating in the relationship.