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Relationship(s) or relation(s) may refer to:

In arts and entertainment[edit]

In sociology[edit]

In mathematics[edit]

Other uses[edit]

  • Entity-relationship model, in database design is a line connecting two entities that captures the rule or navigation path between them. If the two entities are Employee and Department, the relationship can capture the rules “Each Employee must work for one Department” and “Each Department may contain one or many Employees.”[1]
  • Relational model, in database design

See also[edit]


  1. ^ "Data Modeling Made Simple -". Retrieved January 5, 2016.