<P> In systems analysis , a one - to - many relationship is a type of cardinality that refers to the relationship between two entities ( see also entity -- relationship model ) A and B in which an element of A may be linked to many elements of B , but a member of B is linked to only one element of A. For instance , think of A as mothers , and B as children . A mother can have several children , but a child can have only one biological mother . </P>
<P> In systems analysis , a one - to - many relationship is a type of cardinality that refers to the relationship between two entities ( see also entity -- relationship model ) A and B in which an element of A may be linked to many elements of B , but a member of B is linked to only one element of A. For instance , think of A as mothers , and B as children . A mother can have several children , but a child can have only one biological mother . </P>
what is a one to many relationship in database
what is a one to many relationship in database
a type of cardinality that refers to the relationship between two entities
a type of cardinality that refers to the relationship between two entities