Computer Sciene of Udayana State University

April 18, 2009

Cardinality of Relationship

Filed under: Computer Science — ignaga @ 11:21 AM
  • One – to – One

Each entity in the relationship will have exactly one related entity

  • One – to – Many

An entity on one side of the relationship can have many related entities, but an entity on the other side will have a maximum of one related entity

  • Many – to – Many

Entities on both sides of the relationship can have many related entities on the other side

cardinalities

cardinalities

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