cardinality vs Ordinality in JPA
Posted on 2011-09-06
I was reading about JPA. I read about
Roles, Directionality, Cardinality( used in many to one, many to many),Ordinality(used in one to one, one to many).
I have not clearly understtod what each of them used for. what are their differences and similarities, advantages, disadvantages. Thanks in advance