Figure Q5.8 The Product Data ModelPRODUCTPK Prad NumProd TeProd RaleaseDateProd PricePred TyeProd TypBOOKMOVIEPKFKI Prad NumPKFKI Prod NumPKFKI Prod umBook CoverTypeBook PageCountCD GeeCD AMevie RatngMevie Director9. According to the data model, is it required that every entity instance in the PRODUCT tablebe associated with an entity instance in the CD table? Why, or why not?

The completeness constraint specifies whether each entity supertype occurrence must also be a member…

Figure Q5.8 The Product Data Model PRODUCT PK Prad Num Prod Te Prod RaieaneDate Prod Pre Pred Tye ProType BOOK PKFKI Prad Num Book CoverType CD MOVIE PKFKI Prod Num PKFKI Prod um ook PegeCont CD Oere CD A Movie Rating Movie 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?

Figure Q5.8 The Product Data Model PRODUCT PK Prad Num Prod Te Prod RaieaneDate Prod Pre Pred Tye ProType BOOK PKFKI Prad Num Book CoverType CD MOVIE PKFKI Prod Num PKFKI Prod um ook PegeCont CD Oere CD A Movie Rating Movie 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?

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Lab 3: Normalization Assignment: Problem #11 from Chapter #6. (Be sure to note that this is PROBLEM and not REVIEW QUESTION). Normalize a set of data to 1st, 2nd and 3rd normal form by creating relational schemas, dependency diagrams and an Entity Relationship Diagram (crow’s foot notation). For this lab, complete problem #11 in Chapter 6. Be sure to complete each letter (a thru c) for the problem. The ERD for letter cmust be completed with the use of Microsoft Visio. Remember to include headers on all documents you submit to include a brief descriptive title, your name and a date. Question 11: Given the sample records in the CHARTER table shown in Table P6.11, do the following: Write the relational schema and draw the dependency diagram for the table structure. Make sure that you label all dependencies. CHAR_PAX indicates the number of passengers carried. The CHAR_MILES entry is based on round-trip miles, including pickup points. (Hint: Look at the data values to determine the…
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Describe how functional dependencies may be used to show: • There is a many-to-one connection set between the entity sets student and instructor, as well as a one-to-one relationship set between the two.