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unit2.pptx - E-R MODELING 1 UNIT 2 Entity-Relationship...
WebOct 12, 2024 · 1) Weak entity is an entity which cannot exist without some other (owner) entity. 2) Weak entity does not have a primary key, but rather a partial key, and can be only … WebDec 12, 2024 · A strong entity is independent i.e. its existence does not depend on another entity whereas a weak entity is an entity whose existence depends on another entity. … pinch button
In some ER modeling conventions, strong entities are - Chegg
WebIn some ER modeling conventions, strong entities are called and weak entities are called dependent, independent independent, dependent primary, secondary secondary, primary Question 9 What is the purpose of an entity synonym? To use a proper naming comvention for the entity. To reflect common name usage of the entity. WebWeak entity is dependent on a strong entity whereas a Strong entity is independent not dependent on any other. Comparison Chart Weak Entity An entity set that does not have a … Web2 days ago · The Indonesian horror film “Qorin” tells the tale of the principal of an all-girls Islamic school, whose obsession to become the most powerful man and take control of the lives of his students made him cross the line and indulge in all sorts of evil practices. It has been written and directed by Ginanti Rona, with a screenplay by Lele Laila. pinch bugs insects