Attributes of Relationship types

Posted by AJ × 03:35

A relationship type can have attributes:

For example, HoursPerWeek of WORKS_ON

Its value for each relationship instance describes the number of hours per week that

an EMPLOYEE works on a PROJECT.

A value of HoursPerWeek depends on a particular (employee, project) combination

Most relationship attributes are used with M:N relationships.

In 1:N relationships, they can be transferred to the entity type on the N-side of the

relationship.

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