• 1-In what circumstances the composite primary key is appropriate?
• 2-Design the EERD for a media store that have a PRODUCT supertype containing attributes, Prod_Title, Prod_ReleaseDate, Prod_Price, Prod_Type. The subtypes can be BOOK, CD or MOVIE. The book subtype has specific attributes such as Book_CoverType, Book_PageCount, CD has specific attributes as CD_Genre, CD_Artist and Movie has specific attributes like Movie_Rating and Movie_Director.
• 3-Create a database for the scenario given in Question 2. Make sure that disjoint/overlapping constraints and partial/overlapping constraints are taken care of.

Answer rating: 100% (QA)

Q1In what circumstances the composite primary key is appropriate Answer They are used for enhancing the integrity and consistency of the model It is s... View the full answer