Figure Q5.8 The Product Data Model PRODUCT PK Prad Num Prod Te Prod RaleaseDate Prod Price Pred Tye Prod Typ BOOK MOVIE PKFKI Prad Num PKFKI Prod Num PKFKI Prod um Book CoverType Book PageCount CD Gee...


Figure Q5.8 The Product Data Model<br>PRODUCT<br>PK Prad Num<br>Prod Te<br>Prod RaleaseDate<br>Prod Price<br>Pred Tye<br>Prod Typ<br>BOOK<br>MOVIE<br>PKFKI Prad Num<br>PKFKI Prod Num<br>PKFKI Prod um<br>Book CoverType<br>Book PageCount<br>CD Gee<br>CD A<br>Mevie Ratng<br>Mevie Director<br>9. According to the data model, is it required that every entity instance in the PRODUCT table<br>be associated with an entity instance in the CD table? Why, or why not?<br>

Extracted text: Figure Q5.8 The Product Data Model PRODUCT PK Prad Num Prod Te Prod RaleaseDate Prod Price Pred Tye Prod Typ BOOK MOVIE PKFKI Prad Num PKFKI Prod Num PKFKI Prod um Book CoverType Book PageCount CD Gee CD A Mevie Ratng Mevie Director 9. 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?

Jun 05, 2022
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