PRODUCT PK Prod Num Prod Title Prod ReleaseDate Prod Price Prod Type Pice Typn BOOK CD MOVIE PK,FK1 Prod Num PK,FK1 Prod Num PK,FK1 Prod Num Book CoverType Book PageCount CD Genre CD Artist Movie Rating Movie Director
PRODUCT PK Prod Num Prod Title Prod ReleaseDate Prod Price Prod Type Pice Typn BOOK CD MOVIE PK,FK1 Prod Num PK,FK1 Prod Num PK,FK1 Prod Num Book CoverType Book PageCount CD Genre CD Artist Movie Rating Movie Director
Chapter3: File And Folder Management
Section: Chapter Questions
Problem P4EYK
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Question
According to the data model, is it required that every entity instance in the PRODUCT table be associated with an entity instance in the CD table? Why, or why not?
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