Lg/ERM-ERM-RecursiveRelationship

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Rekursive Beziehungen

LearningGoal
edit
key  RecursiveRelationship
qKey  ERM-ERM-RecursiveRelationship
id  2.2.8
chapter  2
chapterKey  ERM
subChapter  2.2
subChapterKey  ERM-ERM
relevance  R1
keywords  ERM
since  1994-01-01
until   
Tritt ein Entity-Typ in einer Beziehung mehrfach auf, so hat es dort unterschiedliche Rollen. Diese Art von Beziehung ist rekursiv

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