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the participation of an entity set E in a relationship set R is said to be total if every entity in E participates in at least 1 relationship in R ....
if only some entities in E participates in the relationship R then the participation of entity set E in relationship R is said to be partial.....
example
every loan entity should be related with 1 customer with borrower relationship therefore participation of loan in borrower is full or total.....
and it is possible that only some customer entities are related wid to loan entity set through borrower relationship so participation of customer in borrower relationship is partial.....
Abhishek jaiswal
IEM
kolkata
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